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CVE-2026-86320

7.8 high SSVC exploitation: poc Published
NVD · CVE.org

A flaw was found in flatpak-builder where Git hooks are not disabled when applying patch sources with use-git-am: true. An attacker who can provide a malicious source containing a Git post-applypatch hook can cause the hook to execute on the host during the build process, resulting in arbitrary code execution with the privileges of the user running flatpak-builder.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 9

  1. StatusAwaiting Analysis → PublishedNVD modified 2026-10-28 18:49
  2. References+1 references (now 14)NVD modified 2026-10-28 19:19
  3. StatusPublished → Awaiting AnalysisNVD modified 2026-10-28 19:19
  4. StatusAwaiting Analysis → PublishedNVD modified 2026-10-21 11:21
  5. References+1 references (now 13)NVD modified 2026-10-21 12:17
  6. StatusPublished → Awaiting AnalysisNVD modified 2026-10-21 12:17
  7. StatusAwaiting Analysis → PublishedNVD modified 2026-10-19 12:17
  8. References+4 references (now 12)NVD modified 2026-10-19 13:16
  9. First seenCVSS 7.8NVD modified 2026-10-12 21:17

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 14