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

Weakness classification (CWE)

References

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.