CVE-2026-111143 Ansilove libansilove through 1.4.2 Out-of-Bounds Read via ansilove_xbin RLE Decoding
Attackers can crash applications rendering untrusted XBIN art via out-of-bounds read in libansilove, requiring an upgrade to mitigate.
- 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-2026-111143?
CVE-2026-111143 is a medium-severity memory corruption vulnerability in libansilove, 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
Ansilove libansilove through 1.4.2 contains an out-of-bounds read vulnerability in ansilove_xbin() in src/loaders/xbin.c that lacks bounds checks for compressed run-length records. Attackers can supply a crafted compressed XBIN file ending in a control byte such as 0x7F to read past the input buffer, crashing applications that render untrusted XBIN art.
Weakness: CWE-125
Which versions are affected by CVE-2026-111143?
How do I fix CVE-2026-111143?
No fix has been published for CVE-2026-111143 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-111143 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-111143 exists.
Sources
Also known as DEBIAN-CVE-2026-111143, GHSA-8q5r-4q94-f6qr, UBUNTU-CVE-2026-111143.