HIGH

CVE-2026-89266

2026-09-12 CVSS v3.1

CVSS

8.2

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.

Weakness (CWE)

CWE-787 Out-of-bounds Write

EPSS Score

0.47%

Probability of exploitation in next 30 days

40th percentile

References

https://github.com/nothings/stb 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/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-overflow-via-codebook-multiplicands

View on dbcve.org

Base CVE data derived from NVD (public domain). Enrichment by dbcve.org (CC-BY-4.0). Fetched via API.

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