CVE-2026-89266
CVE-2026-89266 · stb_vorbis through 1.22 heap buffer overflow via codebook multiplicands
This page contains facts from public vulnerability sources. Check the original advisory before updating.
stb_vorbis through 1.22 contains a heap buffer overflow in start_decoder() where the codebook multiplicands allocation size is truncated from size_t to int. Attackers can craft a malicious Ogg Vorbis file with large entries and dimensions values to trigger out-of-bounds writes, causing process crashes or heap corruption.
CVSS 8.8 · High · EPSS 0.6%
- Published
- Updated
Stack: system
Affected products and versions
stb_vorbis
- Versions
- ≥ 0, ≤ 1.22: Affected (custom)
No fix published
libstb Debian:12
- Versions
- 0.0~git20220908.8b5f1f3+ds-1
- 0.0~git20230129.5736b15+ds-1
- 0.0~git20230129.5736b15+ds-1.1
- 0.0~git20230129.5736b15+ds-1.1~exp1
- 0.0~git20230129.5736b15+ds-1.2
- 0.0~git20240715.f7f20f39fe4f+ds-1
- 0.0~git20241109.5c20573+ds-1
- 0.0~git20250907.fede005+ds-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
libstb Debian:13
- Versions
- 0.0~git20241109.5c20573+ds-1
- 0.0~git20250907.fede005+ds-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
libstb Debian:14
- Versions
- 0.0~git20241109.5c20573+ds-1
- 0.0~git20250907.fede005+ds-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
libstb Ubuntu:20.04:LTS
- Versions
- 0.0~git20190817.1.052dce1-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
libstb Ubuntu:22.04:LTS
- Versions
- 0.0~git20200713.b42009b+ds-1
- 0.0~git20210910.af1a5bc+ds-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
libstb Ubuntu:24.04:LTS
- Versions
- 0.0~git20230129.5736b15+ds-1
- 0.0~git20230129.5736b15+ds-1.1
- 0.0~git20230129.5736b15+ds-1.2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
libstb Ubuntu:26.10
- Versions
- 0.0~git20250907.fede005+ds-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
libstb Ubuntu:26.04:LTS
- Versions
- 0.0~git20241109.5c20573+ds-1
- 0.0~git20250907.fede005+ds-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
Original sources
- https://github.com/nothings/stb/issues/1928
- https://github.com/nothings/stb/issues/1933
- https://github.com/nothings/stb/issues/1947
- https://github.com/nothings/stb/blob/2c980bb59875b0d32144a71867fbdebb2f77cd20/stb_vorbis.c#L3878-L3880
- https://github.com/nothings/stb/blob/2c980bb59875b0d32144a71867fbdebb2f77cd20/stb_vorbis.c#L950
- https://github.com/nothings/stb
- https://www.vulncheck.com/advisories/stb-vorbis-through-1.22-heap-buffer-overflow-via-codebook-multiplicands
- https://nvd.nist.gov/vuln/detail/CVE-2026-89266