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CVE-2026-86320

Last refreshed2026-10-12

Status: UPDATED  |  Advisory ID: CVE-2026-86320

Key Details

CVECVE-2026-86320
CVSS Score / Version
7.8 (High) / CVSS v3.1
Updated2026-10-12
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS Prose
attack vector is local; attack complexity is low; privileges required is none; user interaction is required; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, and Red Hat Enterprise Linux 9
Classified as
CWE-94 (Improper Control of Generation of Code ('Code Injection'))

Affected Products, Subsystems & Sectors

VendorProductAffected VersionsPatch Status
Red HatRed Hat Enterprise Linux 10
Red HatRed Hat Enterprise Linux 8
Red HatRed Hat Enterprise Linux 9
SubsystemsOT Supporting Infrastructure
SectorsMultiple

What to Know

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. (NVD)

What to Do

Monitor Red Hat's web page for any future patch releases.

References

SourceReference
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-86320
CVEhttps://www.cve.org/CVERecord?id=CVE-2026-86320