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Security update for libX11

Type: advisorySources: OSV

This update for libX11 fixes the following issues: - CVE-2026-88806: XkbGetMap Reply Heap-based Buffer Overflow (bsc#1280910). - CVE-2026-94283: out-of-bounds read vulnerability in libX11's XIM (X Input Method) attribute parser (bsc#1281653). - CVE-2026-94284: out-of-bounds read vulnerability in libX11's XIM trigger-keyregistration parser.registration parser (bsc#1281657). - CVE-2026-94285: out-of-bounds read in libX11's byte-oriented codeset parser (bsc#1281661).

Products
libX11
Affected versions
Not specified
Fixed versions
1.6.5-150000.3.41.1
CVEs
CVE-2026-88806, CVE-2026-94283, CVE-2026-94284, CVE-2026-94285
Confirmed fixed CVEs
Not specified
Updated in this feed
27 Oct 2026, 10:45 UTC · Revision 1

Source evidence

Security update for libX11

core-osv · Original source

Published 5 Oct 2026, 15:02 UTC

This update for libX11 fixes the following issues: - CVE-2026-88806: XkbGetMap Reply Heap-based Buffer Overflow (bsc#1280910). - CVE-2026-94283: out-of-bounds read vulnerability in libX11's XIM (X Input Method) attribute parser (bsc#1281653). - CVE-2026-94284: out-of-bounds read vulnerability in libX11's XIM trigger-keyregistration parser.registration parser (bsc#1281657). - CVE-2026-94285: out-of-bounds read in libX11's byte-oriented codeset parser (bsc#1281661).

osv:SUSE-SU-2026:4500-1

libX11

Fixed versions: 1.6.5-150000.3.41.1

libX11

Fixed versions: 1.6.5-150000.3.41.1

libX11

Fixed versions: 1.6.5-150000.3.41.1

libX11

Fixed versions: 1.6.5-150000.3.41.1

libX11

Fixed versions: 1.6.5-150000.3.41.1

libX11

Fixed versions: 1.6.5-150000.3.41.1

libX11

Fixed versions: 1.6.5-150000.3.41.1

libX11

Fixed versions: 1.6.5-150000.3.41.1

libX11

Fixed versions: 1.6.5-150000.3.41.1

libX11

Fixed versions: 1.6.5-150000.3.41.1

libX11

Fixed versions: 1.6.5-150000.3.41.1

Complete source record
{
  "id": "5e93f70d25210030d842e43034a8f1da79a982b956fe7eb4294c06819d23add4",
  "url": "https://osv.dev/vulnerability/SUSE-SU-2026%3A4500-1",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Security update for libX11",
    "summary": "This update for libX11 fixes the following issues: - CVE-2026-88806: XkbGetMap Reply Heap-based Buffer Overflow (bsc#1280910). - CVE-2026-94283: out-of-bounds read vulnerability in libX11's XIM (X Input Method) attribute parser (bsc#1281653). - CVE-2026-94284: out-of-bounds read vulnerability in libX11's XIM trigger-keyregistration parser.registration parser (bsc#1281657). - CVE-2026-94285: out-of-bounds read in libX11's byte-oriented codeset parser (bsc#1281661).",
    "evidence": "osv:SUSE-SU-2026:4500-1",
    "products": [
      {
        "name": {
          "value": "libX11",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.6.5-150000.3.41.1",
            "evidence": "/affected/0/ranges"
          }
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        "affected_versions": []
      },
      {
        "name": {
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          "evidence": "/affected/1/package/name"
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            "evidence": "/affected/1/ranges"
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        "affected_versions": []
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      {
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      {
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      {
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      {
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        "affected_versions": []
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      {
        "name": {
          "value": "libX11",
          "evidence": "/affected/8/package/name"
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        "affected_versions": []
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      {
        "name": {
          "value": "libX11",
          "evidence": "/affected/9/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
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            "evidence": "/affected/9/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libX11",
          "evidence": "/affected/10/package/name"
        },
        "prerequisites": [],
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            "evidence": "/affected/10/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "SUSE-SU-2026:4500-1",
      "aliases": [
        "SUSE-SU-2026:4500-1"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
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              ]
            }
          ],
          "package": {
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            "purl": "pkg:rpm/suse/libX11&distro=SUSE%20Linux%20Enterprise%20Micro%205.3",
            "ecosystem": "SUSE:Linux Enterprise Micro 5.3"
          },
          "database_specific": {
            "source": "https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:4500-1.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "libX11-6": "1.6.5-150000.3.41.1",
                "libX11-data": "1.6.5-150000.3.41.1",
                "libX11-xcb1": "1.6.5-150000.3.41.1"
              }
            ]
          }
        },
        {
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          ],
          "package": {
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            "purl": "pkg:rpm/suse/libX11&distro=SUSE%20Linux%20Enterprise%20Micro%205.4",
            "ecosystem": "SUSE:Linux Enterprise Micro 5.4"
          },
          "database_specific": {
            "source": "https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:4500-1.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "libX11-6": "1.6.5-150000.3.41.1",
                "libX11-data": "1.6.5-150000.3.41.1",
                "libX11-xcb1": "1.6.5-150000.3.41.1"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
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            }
          ],
          "package": {
            "name": "libX11",
            "purl": "pkg:rpm/suse/libX11&distro=SUSE%20Linux%20Enterprise%20Micro%205.5",
            "ecosystem": "SUSE:Linux Enterprise Micro 5.5"
          },
          "database_specific": {
            "source": "https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:4500-1.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "libX11-6": "1.6.5-150000.3.41.1",
                "libX11-data": "1.6.5-150000.3.41.1",
                "libX11-xcb1": "1.6.5-150000.3.41.1"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
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                }
              ]
            }
          ],
          "package": {
            "name": "libX11",
            "purl": "pkg:rpm/suse/libX11&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOS",
            "ecosystem": "SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS"
          },
          "database_specific": {
            "source": "https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:4500-1.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "libX11-6": "1.6.5-150000.3.41.1",
                "libX11-data": "1.6.5-150000.3.41.1",
                "libX11-xcb1": "1.6.5-150000.3.41.1",
                "libX11-devel": "1.6.5-150000.3.41.1",
                "libX11-6-32bit": "1.6.5-150000.3.41.1",
                "libX11-xcb1-32bit": "1.6.5-150000.3.41.1"
              }
            ]
          }
        },
        {
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              "type": "ECOSYSTEM",
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                }
              ]
            }
          ],
          "package": {
            "name": "libX11",
            "purl": "pkg:rpm/suse/libX11&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSS",
            "ecosystem": "SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS"
          },
          "database_specific": {
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          },
          "ecosystem_specific": {
            "binaries": [
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                "libX11-6": "1.6.5-150000.3.41.1",
                "libX11-data": "1.6.5-150000.3.41.1",
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            "ecosystem": "SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS"
          },
          "database_specific": {
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          },
          "ecosystem_specific": {
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              {
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            "ecosystem": "SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS"
          },
          "database_specific": {
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          },
          "ecosystem_specific": {
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              {
                "libX11-6": "1.6.5-150000.3.41.1",
                "libX11-data": "1.6.5-150000.3.41.1",
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                }
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          "package": {
            "name": "libX11",
            "purl": "pkg:rpm/suse/libX11&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSS",
            "ecosystem": "SUSE:Linux Enterprise Server 15 SP4-LTSS"
          },
          "database_specific": {
            "source": "https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:4500-1.json"
          },
          "ecosystem_specific": {
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              {
                "libX11-6": "1.6.5-150000.3.41.1",
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                "libX11-xcb1": "1.6.5-150000.3.41.1",
                "libX11-devel": "1.6.5-150000.3.41.1",
                "libX11-6-32bit": "1.6.5-150000.3.41.1",
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              }
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                }
              ]
            }
          ],
          "package": {
            "name": "libX11",
            "purl": "pkg:rpm/suse/libX11&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP5-LTSS",
            "ecosystem": "SUSE:Linux Enterprise Server 15 SP5-LTSS"
          },
          "database_specific": {
            "source": "https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:4500-1.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "libX11-6": "1.6.5-150000.3.41.1",
                "libX11-data": "1.6.5-150000.3.41.1",
                "libX11-xcb1": "1.6.5-150000.3.41.1",
                "libX11-devel": "1.6.5-150000.3.41.1",
                "libX11-6-32bit": "1.6.5-150000.3.41.1",
                "libX11-xcb1-32bit": "1.6.5-150000.3.41.1"
              }
            ]
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        },
        {
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              "type": "ECOSYSTEM",
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                }
              ]
            }
          ],
          "package": {
            "name": "libX11",
            "purl": "pkg:rpm/suse/libX11&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4",
            "ecosystem": "SUSE:Linux Enterprise Server for SAP Applications 15 SP4"
          },
          "database_specific": {
            "source": "https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:4500-1.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "libX11-6": "1.6.5-150000.3.41.1",
                "libX11-data": "1.6.5-150000.3.41.1",
                "libX11-xcb1": "1.6.5-150000.3.41.1",
                "libX11-devel": "1.6.5-150000.3.41.1",
                "libX11-6-32bit": "1.6.5-150000.3.41.1",
                "libX11-xcb1-32bit": "1.6.5-150000.3.41.1"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.6.5-150000.3.41.1"
                }
              ]
            }
          ],
          "package": {
            "name": "libX11",
            "purl": "pkg:rpm/suse/libX11&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP5",
            "ecosystem": "SUSE:Linux Enterprise Server for SAP Applications 15 SP5"
          },
          "database_specific": {
            "source": "https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:4500-1.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "libX11-6": "1.6.5-150000.3.41.1",
                "libX11-data": "1.6.5-150000.3.41.1",
                "libX11-xcb1": "1.6.5-150000.3.41.1",
                "libX11-devel": "1.6.5-150000.3.41.1",
                "libX11-6-32bit": "1.6.5-150000.3.41.1",
                "libX11-xcb1-32bit": "1.6.5-150000.3.41.1"
              }
            ]
          }
        }
      ],
      "modified": "2026-10-06T11:15:10.300942847Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-88806",
        "CVE-2026-94283",
        "CVE-2026-94284",
        "CVE-2026-94285"
      ],
      "references": [
        "https://www.suse.com/support/update/announcement/2026/suse-su-20264500-1/",
        "https://bugzilla.suse.com/1280910",
        "https://bugzilla.suse.com/1281653",
        "https://bugzilla.suse.com/1281657",
        "https://bugzilla.suse.com/1281661",
        "https://www.suse.com/security/cve/CVE-2026-88806",
        "https://www.suse.com/security/cve/CVE-2026-94283",
        "https://www.suse.com/security/cve/CVE-2026-94284",
        "https://www.suse.com/security/cve/CVE-2026-94285"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-88806",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-94283",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-94284",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-94285",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 88900,
  "published_at": "2026-10-05T15:02:59+00:00"
}