libcaca: libcaca is a colour ASCII art library
CVE-2026-42046 is fixed in 3 products on 1 platform, first by caca-utils 0.99.beta19-2.2ubuntu4.2, released May 11, 2026. It is not reported as exploited. Patch Radar priority: High.
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 crafted file in the "caca" format. Depending on the build configuration and memory allocator, this may lead to memory corruption or remote code execution. This is the same vulnerability as CVE-2021-3410 but the fix at that time was not fully correct. Commit fb77acff9ba6bb01d53940da34fb10f20b156a23 fixes this vulnerability.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| caca-utils · Ubuntu 22.04.1 LTS (jammy) | 0.99.beta19-2.2ubuntu4.2 | caca-utils 0.99.beta19-2.2ubuntu4.2 | May 11, 2026 |
| caca-utils · Ubuntu 24.04.5 LTS (noble) | 0.99.beta20-4ubuntu0.2 | caca-utils 0.99.beta20-4ubuntu0.2 | May 11, 2026 |
| caca-utils · Ubuntu 25.10 (questing) | 0.99.beta20-5ubuntu0.25.10.2 | caca-utils 0.99.beta20-5ubuntu0.25.10.2 | May 11, 2026 |
| caca-utils · Ubuntu 26.04.1 LTS (resolute) | 0.99.beta20-6ubuntu2.1 | caca-utils 0.99.beta20-6ubuntu2.1 | May 11, 2026 |
| libcaca · Debian 12.15 (bookworm) | 0.99.beta20-3+deb12u1 | DEBIAN-CVE-2026-42046 | May 11, 2026 |
| libcaca · Debian 13.5 (trixie) | 0.99.beta20-5+deb13u1 | DEBIAN-CVE-2026-42046 | May 11, 2026 |
| libcaca · Debian 14 | 0.99.beta20-7 | DEBIAN-CVE-2026-42046 | May 11, 2026 |
| libcaca · opensuse-leap 16.0 | 0.99.beta20-160000.3.1 | OPENSUSE-SU-2026:21101-1 | Jun 19, 2026 |
| libcaca · sles 15.6 | 0.99.beta20-150600.3.3.1 | SUSE-SU-2026:2423-1 | Jun 16, 2026 |
| libcaca · sles 15.7 | 0.99.beta20-150600.3.3.1 | SUSE-SU-2026:2423-1 | Jun 16, 2026 |
| libcaca · sles 16.0 | 0.99.beta20-160000.3.1 | SUSE-SU-2026:22175-1 | Jun 19, 2026 |
| libcaca0 · Ubuntu 22.04.1 LTS (jammy) | 0.99.beta19-2.2ubuntu4.2 | libcaca0 0.99.beta19-2.2ubuntu4.2 | May 11, 2026 |
| libcaca0 · Ubuntu 24.04.5 LTS (noble) | 0.99.beta20-4ubuntu0.2 | libcaca0 0.99.beta20-4ubuntu0.2 | May 11, 2026 |
| libcaca0 · Ubuntu 25.10 (questing) | 0.99.beta20-5ubuntu0.25.10.2 | libcaca0 0.99.beta20-5ubuntu0.25.10.2 | May 11, 2026 |
| libcaca0 · Ubuntu 26.04.1 LTS (resolute) | 0.99.beta20-6ubuntu2.1 | libcaca0 0.99.beta20-6ubuntu2.1 | May 11, 2026 |
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