CVE-2026-111131 libxmp through 4.7.4 Stack Out-of-Bounds Read via P61A Depacker
Attackers can leak stack memory or disrupt loading by supplying a crafted P61A module to the libxmp library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-111131?
CVE-2026-111131 is a medium-severity vulnerability in libxmp, published on 15 Oct 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
libxmp through 4.7.4 contains an off-by-one stack out-of-bounds read vulnerability in the prowizard P61A depacker depack_p61a() in src/loaders/prowizard/p61a.c. Attackers can supply a crafted headerless P61A module with 31 samples and a 0xffe0 back-reference size word to leak stack memory into sample metadata or disrupt loading.
Weakness: CWE-125
Which versions are affected by CVE-2026-111131?
How do I fix CVE-2026-111131?
No fix has been published for CVE-2026-111131 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-111131 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-111131 exists.
Sources
Also known as DEBIAN-CVE-2026-111131, GHSA-5xv9-8cq8-34q7, UBUNTU-CVE-2026-111131.