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Red Hat Security Advisory: xorg-x11-server security update

Type: advisorySources: OSV
Products
xorg-x11-server, xorg-x11-server-Xdmx, xorg-x11-server-Xdmx-debuginfo, xorg-x11-server-Xephyr, xorg-x11-server-Xephyr-debuginfo, xorg-x11-server-Xnest, xorg-x11-server-Xnest-debuginfo, xorg-x11-server-Xorg, xorg-x11-server-Xorg-debuginfo, xorg-x11-server-Xvfb, xorg-x11-server-Xvfb-debuginfo, xorg-x11-server-common, xorg-x11-server-debuginfo, xorg-x11-server-debugsource, xorg-x11-server-devel, xorg-x11-server-source
Affected versions
Not specified
Fixed versions
0:1.20.11-34.el9_8.5
CVEs
CVE-2026-93516, CVE-2026-93517, CVE-2026-93518, CVE-2026-93519, CVE-2026-93520
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 09:32 UTC · Revision 1

Source evidence

Red Hat Security Advisory: xorg-x11-server security update

core-osv · Original source

Published 19 Oct 2026, 10:07 UTC

Red Hat Security Advisory: xorg-x11-server security update

osv:RHSA-2026:84574

xorg-x11-server

Fixed versions: 0:1.20.11-34.el9_8.5

xorg-x11-server-Xdmx

Fixed versions: 0:1.20.11-34.el9_8.5

xorg-x11-server-Xdmx-debuginfo

Fixed versions: 0:1.20.11-34.el9_8.5

xorg-x11-server-Xephyr

Fixed versions: 0:1.20.11-34.el9_8.5

xorg-x11-server-Xephyr-debuginfo

Fixed versions: 0:1.20.11-34.el9_8.5

xorg-x11-server-Xnest

Fixed versions: 0:1.20.11-34.el9_8.5

xorg-x11-server-Xnest-debuginfo

Fixed versions: 0:1.20.11-34.el9_8.5

xorg-x11-server-Xorg

Fixed versions: 0:1.20.11-34.el9_8.5

xorg-x11-server-Xorg-debuginfo

Fixed versions: 0:1.20.11-34.el9_8.5

xorg-x11-server-Xvfb

Fixed versions: 0:1.20.11-34.el9_8.5

xorg-x11-server-Xvfb-debuginfo

Fixed versions: 0:1.20.11-34.el9_8.5

xorg-x11-server-common

Fixed versions: 0:1.20.11-34.el9_8.5

xorg-x11-server-debuginfo

Fixed versions: 0:1.20.11-34.el9_8.5

xorg-x11-server-debugsource

Fixed versions: 0:1.20.11-34.el9_8.5

xorg-x11-server-Xdmx-debuginfo

Fixed versions: 0:1.20.11-34.el9_8.5

xorg-x11-server-Xephyr-debuginfo

Fixed versions: 0:1.20.11-34.el9_8.5

xorg-x11-server-Xnest-debuginfo

Fixed versions: 0:1.20.11-34.el9_8.5

xorg-x11-server-Xorg-debuginfo

Fixed versions: 0:1.20.11-34.el9_8.5

xorg-x11-server-Xvfb-debuginfo

Fixed versions: 0:1.20.11-34.el9_8.5

xorg-x11-server-debuginfo

Fixed versions: 0:1.20.11-34.el9_8.5

xorg-x11-server-debugsource

Fixed versions: 0:1.20.11-34.el9_8.5

xorg-x11-server-devel

Fixed versions: 0:1.20.11-34.el9_8.5

xorg-x11-server-source

Fixed versions: 0:1.20.11-34.el9_8.5

Complete source record
{
  "id": "1f89d6af7b6296837c7f5a94a2c901f7d9041cc84b63ae0dc16bf6558fa6bf81",
  "url": "https://osv.dev/vulnerability/RHSA-2026%3A84574",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Red Hat Security Advisory: xorg-x11-server security update",
    "summary": "Red Hat Security Advisory: xorg-x11-server security update",
    "evidence": "osv:RHSA-2026:84574",
    "products": [
      {
        "name": {
          "value": "xorg-x11-server",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0:1.20.11-34.el9_8.5",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "xorg-x11-server-Xdmx",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0:1.20.11-34.el9_8.5",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "xorg-x11-server-Xdmx-debuginfo",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0:1.20.11-34.el9_8.5",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "xorg-x11-server-Xephyr",
          "evidence": "/affected/3/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0:1.20.11-34.el9_8.5",
            "evidence": "/affected/3/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "xorg-x11-server-Xephyr-debuginfo",
          "evidence": "/affected/4/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0:1.20.11-34.el9_8.5",
            "evidence": "/affected/4/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "xorg-x11-server-Xnest",
          "evidence": "/affected/5/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0:1.20.11-34.el9_8.5",
            "evidence": "/affected/5/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "xorg-x11-server-Xnest-debuginfo",
          "evidence": "/affected/6/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0:1.20.11-34.el9_8.5",
            "evidence": "/affected/6/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "xorg-x11-server-Xorg",
          "evidence": "/affected/7/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0:1.20.11-34.el9_8.5",
            "evidence": "/affected/7/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "xorg-x11-server-Xorg-debuginfo",
          "evidence": "/affected/8/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0:1.20.11-34.el9_8.5",
            "evidence": "/affected/8/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "xorg-x11-server-Xvfb",
          "evidence": "/affected/9/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0:1.20.11-34.el9_8.5",
            "evidence": "/affected/9/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "xorg-x11-server-Xvfb-debuginfo",
          "evidence": "/affected/10/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0:1.20.11-34.el9_8.5",
            "evidence": "/affected/10/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "xorg-x11-server-common",
          "evidence": "/affected/11/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0:1.20.11-34.el9_8.5",
            "evidence": "/affected/11/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "xorg-x11-server-debuginfo",
          "evidence": "/affected/12/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0:1.20.11-34.el9_8.5",
            "evidence": "/affected/12/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "xorg-x11-server-debugsource",
          "evidence": "/affected/13/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0:1.20.11-34.el9_8.5",
            "evidence": "/affected/13/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "xorg-x11-server-Xdmx-debuginfo",
          "evidence": "/affected/14/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0:1.20.11-34.el9_8.5",
            "evidence": "/affected/14/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "xorg-x11-server-Xephyr-debuginfo",
          "evidence": "/affected/15/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0:1.20.11-34.el9_8.5",
            "evidence": "/affected/15/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "xorg-x11-server-Xnest-debuginfo",
          "evidence": "/affected/16/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0:1.20.11-34.el9_8.5",
            "evidence": "/affected/16/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "xorg-x11-server-Xorg-debuginfo",
          "evidence": "/affected/17/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0:1.20.11-34.el9_8.5",
            "evidence": "/affected/17/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "xorg-x11-server-Xvfb-debuginfo",
          "evidence": "/affected/18/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0:1.20.11-34.el9_8.5",
            "evidence": "/affected/18/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "xorg-x11-server-debuginfo",
          "evidence": "/affected/19/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0:1.20.11-34.el9_8.5",
            "evidence": "/affected/19/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "xorg-x11-server-debugsource",
          "evidence": "/affected/20/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0:1.20.11-34.el9_8.5",
            "evidence": "/affected/20/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "xorg-x11-server-devel",
          "evidence": "/affected/21/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0:1.20.11-34.el9_8.5",
            "evidence": "/affected/21/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "xorg-x11-server-source",
          "evidence": "/affected/22/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0:1.20.11-34.el9_8.5",
            "evidence": "/affected/22/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "RHSA-2026:84574",
      "aliases": [
        "RHSA-2026:84574"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0:1.20.11-34.el9_8.5"
                }
              ]
            }
          ],
          "package": {
            "name": "xorg-x11-server",
            "purl": "pkg:rpm/redhat/xorg-x11-server",
            "ecosystem": "Red Hat:enterprise_linux:9::appstream"
          },
          "database_specific": {
            "source": "https://security.access.redhat.com/data/osv/RHSA-2026:84574.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0:1.20.11-34.el9_8.5"
                }
              ]
            }
          ],
          "package": {
            "name": "xorg-x11-server-Xdmx",
            "purl": "pkg:rpm/redhat/xorg-x11-server-Xdmx",
            "ecosystem": "Red Hat:enterprise_linux:9::appstream"
          },
          "database_specific": {
            "source": "https://security.access.redhat.com/data/osv/RHSA-2026:84574.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0:1.20.11-34.el9_8.5"
                }
              ]
            }
          ],
          "package": {
            "name": "xorg-x11-server-Xdmx-debuginfo",
            "purl": "pkg:rpm/redhat/xorg-x11-server-Xdmx-debuginfo",
            "ecosystem": "Red Hat:enterprise_linux:9::appstream"
          },
          "database_specific": {
            "source": "https://security.access.redhat.com/data/osv/RHSA-2026:84574.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0:1.20.11-34.el9_8.5"
                }
              ]
            }
          ],
          "package": {
            "name": "xorg-x11-server-Xephyr",
            "purl": "pkg:rpm/redhat/xorg-x11-server-Xephyr",
            "ecosystem": "Red Hat:enterprise_linux:9::appstream"
          },
          "database_specific": {
            "source": "https://security.access.redhat.com/data/osv/RHSA-2026:84574.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0:1.20.11-34.el9_8.5"
                }
              ]
            }
          ],
          "package": {
            "name": "xorg-x11-server-Xephyr-debuginfo",
            "purl": "pkg:rpm/redhat/xorg-x11-server-Xephyr-debuginfo",
            "ecosystem": "Red Hat:enterprise_linux:9::appstream"
          },
          "database_specific": {
            "source": "https://security.access.redhat.com/data/osv/RHSA-2026:84574.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0:1.20.11-34.el9_8.5"
                }
              ]
            }
          ],
          "package": {
            "name": "xorg-x11-server-Xnest",
            "purl": "pkg:rpm/redhat/xorg-x11-server-Xnest",
            "ecosystem": "Red Hat:enterprise_linux:9::appstream"
          },
          "database_specific": {
            "source": "https://security.access.redhat.com/data/osv/RHSA-2026:84574.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0:1.20.11-34.el9_8.5"
                }
              ]
            }
          ],
          "package": {
            "name": "xorg-x11-server-Xnest-debuginfo",
            "purl": "pkg:rpm/redhat/xorg-x11-server-Xnest-debuginfo",
            "ecosystem": "Red Hat:enterprise_linux:9::appstream"
          },
          "database_specific": {
            "source": "https://security.access.redhat.com/data/osv/RHSA-2026:84574.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0:1.20.11-34.el9_8.5"
                }
              ]
            }
          ],
          "package": {
            "name": "xorg-x11-server-Xorg",
            "purl": "pkg:rpm/redhat/xorg-x11-server-Xorg",
            "ecosystem": "Red Hat:enterprise_linux:9::appstream"
          },
          "database_specific": {
            "source": "https://security.access.redhat.com/data/osv/RHSA-2026:84574.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0:1.20.11-34.el9_8.5"
                }
              ]
            }
          ],
          "package": {
            "name": "xorg-x11-server-Xorg-debuginfo",
            "purl": "pkg:rpm/redhat/xorg-x11-server-Xorg-debuginfo",
            "ecosystem": "Red Hat:enterprise_linux:9::appstream"
          },
          "database_specific": {
            "source": "https://security.access.redhat.com/data/osv/RHSA-2026:84574.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0:1.20.11-34.el9_8.5"
                }
              ]
            }
          ],
          "package": {
            "name": "xorg-x11-server-Xvfb",
            "purl": "pkg:rpm/redhat/xorg-x11-server-Xvfb",
            "ecosystem": "Red Hat:enterprise_linux:9::appstream"
          },
          "database_specific": {
            "source": "https://security.access.redhat.com/data/osv/RHSA-2026:84574.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0:1.20.11-34.el9_8.5"
                }
              ]
            }
          ],
          "package": {
            "name": "xorg-x11-server-Xvfb-debuginfo",
            "purl": "pkg:rpm/redhat/xorg-x11-server-Xvfb-debuginfo",
            "ecosystem": "Red Hat:enterprise_linux:9::appstream"
          },
          "database_specific": {
            "source": "https://security.access.redhat.com/data/osv/RHSA-2026:84574.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0:1.20.11-34.el9_8.5"
                }
              ]
            }
          ],
          "package": {
            "name": "xorg-x11-server-common",
            "purl": "pkg:rpm/redhat/xorg-x11-server-common",
            "ecosystem": "Red Hat:enterprise_linux:9::appstream"
          },
          "database_specific": {
            "source": "https://security.access.redhat.com/data/osv/RHSA-2026:84574.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0:1.20.11-34.el9_8.5"
                }
              ]
            }
          ],
          "package": {
            "name": "xorg-x11-server-debuginfo",
            "purl": "pkg:rpm/redhat/xorg-x11-server-debuginfo",
            "ecosystem": "Red Hat:enterprise_linux:9::appstream"
          },
          "database_specific": {
            "source": "https://security.access.redhat.com/data/osv/RHSA-2026:84574.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0:1.20.11-34.el9_8.5"
                }
              ]
            }
          ],
          "package": {
            "name": "xorg-x11-server-debugsource",
            "purl": "pkg:rpm/redhat/xorg-x11-server-debugsource",
            "ecosystem": "Red Hat:enterprise_linux:9::appstream"
          },
          "database_specific": {
            "source": "https://security.access.redhat.com/data/osv/RHSA-2026:84574.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0:1.20.11-34.el9_8.5"
                }
              ]
            }
          ],
          "package": {
            "name": "xorg-x11-server-Xdmx-debuginfo",
            "purl": "pkg:rpm/redhat/xorg-x11-server-Xdmx-debuginfo",
            "ecosystem": "Red Hat:enterprise_linux:9::crb"
          },
          "database_specific": {
            "source": "https://security.access.redhat.com/data/osv/RHSA-2026:84574.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0:1.20.11-34.el9_8.5"
                }
              ]
            }
          ],
          "package": {
            "name": "xorg-x11-server-Xephyr-debuginfo",
            "purl": "pkg:rpm/redhat/xorg-x11-server-Xephyr-debuginfo",
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      ],
      "modified": "2026-10-20T10:17:31Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-93516",
        "CVE-2026-93517",
        "CVE-2026-93518",
        "CVE-2026-93519",
        "CVE-2026-93520"
      ],
      "references": [
        "https://access.redhat.com/errata/RHSA-2026:84574",
        "https://access.redhat.com/security/updates/classification/#important",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2545161",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2545246",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2545860",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2545887",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2545908",
        "https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_84574.json",
        "https://access.redhat.com/security/cve/CVE-2026-93516",
        "https://www.cve.org/CVERecord?id=CVE-2026-93516",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-93516",
        "https://access.redhat.com/security/cve/CVE-2026-93517",
        "https://www.cve.org/CVERecord?id=CVE-2026-93517",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-93517",
        "https://access.redhat.com/security/cve/CVE-2026-93518",
        "https://www.cve.org/CVERecord?id=CVE-2026-93518",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-93518",
        "https://access.redhat.com/security/cve/CVE-2026-93519",
        "https://www.cve.org/CVERecord?id=CVE-2026-93519",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-93519",
        "https://access.redhat.com/security/cve/CVE-2026-93520",
        "https://www.cve.org/CVERecord?id=CVE-2026-93520",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-93520"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-93516",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-93517",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-93518",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-93519",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-93520",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 379038,
  "published_at": "2026-10-19T10:07:55+00:00"
}