Low [CVE-2026-86422] Information disclosure and modification via TOCTOU symlink race on Windows
This low-severity Red Hat Linux advisory covers CVE-2026-86422.
Android app · Google Play
Monitor future Red Hat Linux CVEs from your phone.
Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 32 official vendor sources and 160+ reviewed platform categories.
Summary
A flaw was found in ImageMagick. This vulnerability, known as a time-of-check-time-of-use (TOCTOU) flaw, affects path policy enforcement on Windows.
A local attacker can exploit this by manipulating symbolic links (symlinks) during the brief interval between when the system checks a file's permissions and when it actually accesses the file.
This allows the attacker to bypass security restrictions and potentially read or write files that should be protected by policy, leading to unauthorized information disclosure or data modification. Red Hat has evaluated this issue and determined that Red Hat products are not affected.
This vulnerability only applies to Windows platforms. Red Hat severity: Low — CVSS 3.3 (CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N).
Weakness: CWE-367. Red Hat lists Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7 as not affected.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation checklist
- Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Discussion(0)
No comments yet. Share field notes, upgrade gotchas, or questions — verify against the vendor advisory before acting on community advice.
Sign in to join the discussion.