Security update for flatpak

{
  "id": "504a468e2e9ffe061822505fffdf105ae5d2827aaf31d120f5e962f6c149a3fa",
  "url": "https://osv.dev/vulnerability/SUSE-SU-2026%3A4610-1",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Security update for flatpak",
    "summary": "This update for flatpak fixes the following issues: - CVE-2026-90616: missing symlink protection allows a malicious sandboxed app to obtain arbitrary read and write access to files on the host (bsc#1280236). - CVE-2026-92162: path traversal via unvalidated `arch` parameter in `DeployAppstream` (bsc#1282514). - CVE-2026-96275: arbitrary write access as root via extra-data extraction (bsc#1282515). - CVE-2026-96276: arbitrary write in host context via `flatpak build-init` (bsc#1282516). - CVE-2026-96281: unprivileged active user can bypass anti-downgrade checks for system apps/runtimes (bsc#1282519). - CVE-2026-96282: extension metadata path traversal file existence oracle (bsc#1282520). - CVE-2026-96283: flatpak-system-helper: cross-user `CancelPull` orphans another user's ongoing pull (bsc#1282521). - CVE-2026-96807: fixed-filename writes to arbitrary locations via symlink attack on `.ld.so` (bsc#1282523). - CVE-2026-96808: `revokefs` symlink path traversal allows local privilege escalation via commit tampering (bsc#1282524).",
    "evidence": "osv:SUSE-SU-2026:4610-1",
    "products": [
      {
        "name": {
          "value": "flatpak",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.4.2-3.15.1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "flatpak",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.4.2-3.15.1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "SUSE-SU-2026:4610-1",
      "aliases": [
        "SUSE-SU-2026:4610-1"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.4.2-3.15.1"
                }
              ]
            }
          ],
          "package": {
            "name": "flatpak",
            "purl": "pkg:rpm/suse/flatpak&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSS",
            "ecosystem": "SUSE:Linux Enterprise Server 12 SP5-LTSS"
          },
          "database_specific": {
            "source": "https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:4610-1.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "flatpak": "1.4.2-3.15.1",
                "libflatpak0": "1.4.2-3.15.1",
                "typelib-1_0-Flatpak-1_0": "1.4.2-3.15.1"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.4.2-3.15.1"
                }
              ]
            }
          ],
          "package": {
            "name": "flatpak",
            "purl": "pkg:rpm/suse/flatpak&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5",
            "ecosystem": "SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5"
          },
          "database_specific": {
            "source": "https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:4610-1.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "flatpak": "1.4.2-3.15.1",
                "libflatpak0": "1.4.2-3.15.1",
                "typelib-1_0-Flatpak-1_0": "1.4.2-3.15.1"
              }
            ]
          }
        }
      ],
      "modified": "2026-10-10T09:30:06.446561391Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-90616",
        "CVE-2026-92162",
        "CVE-2026-96275",
        "CVE-2026-96276",
        "CVE-2026-96281",
        "CVE-2026-96282",
        "CVE-2026-96283",
        "CVE-2026-96807",
        "CVE-2026-96808"
      ],
      "references": [
        "https://www.suse.com/support/update/announcement/2026/suse-su-20264610-1/",
        "https://bugzilla.suse.com/1280236",
        "https://bugzilla.suse.com/1282514",
        "https://bugzilla.suse.com/1282515",
        "https://bugzilla.suse.com/1282516",
        "https://bugzilla.suse.com/1282519",
        "https://bugzilla.suse.com/1282520",
        "https://bugzilla.suse.com/1282521",
        "https://bugzilla.suse.com/1282523",
        "https://bugzilla.suse.com/1282524",
        "https://www.suse.com/security/cve/CVE-2026-90616",
        "https://www.suse.com/security/cve/CVE-2026-92162",
        "https://www.suse.com/security/cve/CVE-2026-96275",
        "https://www.suse.com/security/cve/CVE-2026-96276",
        "https://www.suse.com/security/cve/CVE-2026-96281",
        "https://www.suse.com/security/cve/CVE-2026-96282",
        "https://www.suse.com/security/cve/CVE-2026-96283",
        "https://www.suse.com/security/cve/CVE-2026-96807",
        "https://www.suse.com/security/cve/CVE-2026-96808"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-90616",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-92162",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-96275",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-96276",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-96281",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-96282",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-96283",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-96807",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-96808",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 228358,
  "published_at": "2026-10-09T15:55:00+00:00"
}