Vulnerability Description
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 Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/nothings/stb
- https://github.com/nothings/stb/blob/2c980bb59875b0d32144a71867fbdebb2f77cd20/st
- https://github.com/nothings/stb/blob/2c980bb59875b0d32144a71867fbdebb2f77cd20/st
- https://github.com/nothings/stb/issues/1928
- https://github.com/nothings/stb/issues/1933
- https://github.com/nothings/stb/issues/1947
- https://www.vulncheck.com/advisories/stb-vorbis-through-1.22-heap-buffer-overflo
FAQ
What is CVE-2026-89266?
CVE-2026-89266 is a vulnerability with a CVSS score of 8.2 (HIGH). 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 ...
How severe is CVE-2026-89266?
CVE-2026-89266 has been rated HIGH with a CVSS base score of 8.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-89266?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.