xorg-x11-server-Xwayland: Fix of 8 CVEs

{
  "id": "e44e9f7e60978340e0d18b2c991590fa4abb9a0b932bd81c21b6f4f7abdbc2c7",
  "url": "https://osv.dev/vulnerability/CLSA-2026-1792791669",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "xorg-x11-server-Xwayland: Fix of 8 CVEs",
    "summary": "- CVE-2026-88812: Use-after-free/double free in XKB _CheckSetDoodad: doodad text pointer left dangling after free when reading the font string fails - CVE-2026-93516: Use-after-free in DIX: passive grabs keep dangling pointers to a removed input device (grab->device / modifierDevice) - CVE-2026-93517: Out-of-bounds read in GLX RenderLarge: dataBytes of the first request not validated against the request length - CVE-2026-93518: Heap buffer overflow in XKB key resize: 16-bit size_syms/num_syms/size_acts/num_acts truncate computed sizes, undersizing allocations - CVE-2026-93519: Out-of-bounds write in XInput barrier handling: input_constrain_cursor writes barrier events without a bounds check - CVE-2026-93521: Heap memory corruption in RandR RRChangeProviderProperty PrependMode due to wrong size and offset when shifting old data - CVE-2026-93522: Heap buffer overflow in glamor_upload_boxes: tmp_bits sized from pixmap height, not the source coordinate range - CVE-2026-93523: Out-of-bounds access in XInput ProcXIPassiveUngrabDevice: client-supplied modifier values are not validated",
    "evidence": "osv:CLSA-2026-1792791669",
    "products": [
      {
        "name": {
          "value": "xorg-x11-server-Xwayland",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "23.2.7-5.el9_6.tuxcare.els5",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "xorg-x11-server-Xwayland-devel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "23.2.7-5.el9_6.tuxcare.els5",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CLSA-2026-1792791669",
      "aliases": [
        "CLSA-2026-1792791669"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "23.2.7-5.el9_6.tuxcare.els5"
                }
              ]
            }
          ],
          "package": {
            "name": "xorg-x11-server-Xwayland",
            "purl": "pkg:rpm/tuxcare/xorg-x11-server-Xwayland?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1792791669.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "23.2.7-5.el9_6.tuxcare.els5"
                }
              ]
            }
          ],
          "package": {
            "name": "xorg-x11-server-Xwayland-devel",
            "purl": "pkg:rpm/tuxcare/xorg-x11-server-Xwayland-devel?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1792791669.json"
          }
        }
      ],
      "modified": "2026-10-26T09:31:37.102994719Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-88812",
        "CVE-2026-93516",
        "CVE-2026-93517",
        "CVE-2026-93518",
        "CVE-2026-93519",
        "CVE-2026-93521",
        "CVE-2026-93522",
        "CVE-2026-93523"
      ],
      "references": [
        "https://errata.tuxcare.com/els_os/tuxcare9.6esu/CLSA-2026-1792791669.html",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-88812",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-93516",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-93517",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-93518",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-93519",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-93521",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-93522",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-93523"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-88812",
        "evidence": "/upstream"
      },
      {
        "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-2026-93521",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-93522",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-93523",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 447863,
  "published_at": "2026-10-23T21:41:29+00:00"
}