---
id: CVE-2026-111143
title: >-
  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
summary: >-
  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 endi…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'
cwe:
  - CWE-125
vendor: ansilove
product: libansilove
affected:
  - libansilove <= 1.4.2
published: '2026-10-15'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T19:17:28.563'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-111143'
references:
  - url: 'https://github.com/ansilove/libansilove'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/ansilove/libansilove/blob/f1b05447aa566aa4eef9b05ebf8c2aaf1e379cd3/src/loaders/xbin.c#L169-L241
    label: disclosure@vulncheck.com
  - url: >-
      https://hackmd.io/@haind-pwn/libansilove-xbin-rle-oob-read-and-null-font-deref
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/ansilove-libansilove-through-1.4.2-out-of-bounds-read-via-ansilove-xbin-rle-decoding
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
  - exploit-available
ingestedAt: '2026-10-15T19:25:46.412Z'
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-15T19:43:53.266255Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.