Buffer overflow in Cacalabs Libcaca
CVE-2026-42046
libcaca is a colour ASCII art library. In 0.99.beta20 and earlier, an integer overflow vulnerability in libcaca's canvas import functionality allows an attacker to cause a controlled heap out-of-bounds write (heap overflow) by supplying a…
Vulnerability class: Buffer Overflow
EPSS: 0.001 (24.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Cacalabs Libcaca — versions <= 0.99.beta20
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-42046?
- CVE-2026-42046 is a high-severity vulnerability in Cacalabs Libcaca, classified under Heap-based Buffer Overflow. CVSS score: 7.8/10. Published 2026-05-11.
- How severe is CVE-2026-42046?
- High severity. CVSS v3 base score is 7.8 out of 10.