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CVE-2026-86320

Discovered by AISLEPUBLISHEDCWE-94

Description

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.

CVSS Base Scores

CVSS v3.1(Primary)
7.8

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Products

VendorProductVersionStatus
Red HatRed Hat Enterprise Linux 100:1.4.4-1.el10_2.1unaffected
Red HatRed Hat Enterprise Linux 10.0 Extended Update Support0:1.4.4-1.el10_0.1unaffected
Red HatRed Hat Enterprise Linux 80:1.2.3-2.el8_10unaffected
Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support0:1.0.9-4.el8_4unaffected
Red HatRed Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On0:1.0.9-4.el8_4unaffected
Red HatRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support0:1.0.9-4.el8_6unaffected
Red HatRed Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On0:1.0.9-4.el8_6unaffected
Red HatRed Hat Enterprise Linux 8.8 Telecommunications Update Service0:1.0.14-3.el8_8unaffected
Red HatRed Hat Enterprise Linux 8.8 Update Services for SAP Solutions0:1.0.14-3.el8_8unaffected
Red HatRed Hat Enterprise Linux 90:1.2.3-1.el9_8.1unaffected
Red HatRed Hat Enterprise Linux 9.2 Update Services for SAP Solutions0:1.2.2-2.el9_2unaffected
Red HatRed Hat Enterprise Linux 9.4 Update Services for SAP Solutions0:1.2.3-2.el9_4unaffected
Red HatRed Hat Enterprise Linux 9.6 Extended Update Support0:1.2.3-1.el9_6.1unaffected

Credits

  • Red Hat would like to thank AISLE Research for reporting this issue.

References