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stb_vorbis through 1.22 heap buffer overflow via codebook multiplicands

Type: advisorySource: Official CVE List1 source record

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.

Announced Group revision 1
Original source ↗

CVE-2026-89266

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-89266

stb_vorbis

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://github.com/nothings/stb",
    "vendor": "nothings",
    "product": "stb_vorbis",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "versionType": "custom",
        "lessThanOrEqual": "1.22"
      }
    ],
    "packageURL": "pkg:github/nothings/stb",
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2026-89266

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#1620 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement