CVE-2026-61371 Path traversal in n/a
An attacker can overwrite arbitrary files via symlink following in AVML, leading to data modification before input validation completes.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-61371?
CVE-2026-61371 is a high-severity path traversal vulnerability in n/a, published on 15 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Microsoft AVML before 0.17.0 could follow a symlink when opening a destination output path on Unix, allowing truncation/overwrite of the symlink target. The destructive effect is performed at open-time via O_TRUNC, and can happen before full input validation completes (“truncation-before-validation”).
Weakness: CWE-59
Which versions are affected by CVE-2026-61371?
How do I fix CVE-2026-61371?
No fix has been published for CVE-2026-61371 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-61371 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-61371 exists.
Sources
Also known as GHSA-qm7h-f635-h2r6.