CVE-2026-89266
stb_vorbis through 1.22 heap buffer overflow via codebook multiplicands
CVSS Score
8.2
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-787 |
| Vendor | nothings |
| Product | stb_vorbis |
| Published | Sep 11, 2026 |
Stay Ahead of the Next One
Get instant alerts for nothings stb_vorbis
Be the first to know when new high vulnerabilities affecting nothings stb_vorbis are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
High
Affected Versions
nothings / stb_vorbis
0 ≤ 1.22
References
github.com: https://github.com/nothings/stb/issues/1928 github.com: https://github.com/nothings/stb/issues/1933 github.com: https://github.com/nothings/stb/issues/1947 github.com: https://github.com/nothings/stb/blob/2c980bb59875b0d32144a71867fbdebb2f77cd20/stb_vorbis.c#L3878-L3880 github.com: https://github.com/nothings/stb/blob/2c980bb59875b0d32144a71867fbdebb2f77cd20/stb_vorbis.c#L950 github.com: https://github.com/nothings/stb vulncheck.com: https://www.vulncheck.com/advisories/stb-vorbis-through-1.22-heap-buffer-overflow-via-codebook-multiplicands
Credits
boergeson 🔍 Përparim Mjeku