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CVE-2026-41071

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and prior, a crafted HEIF sequence file where the saiz box declares more samples than actually exist in the track's chunk table causes a heap-buffer-overflow (out-of-bounds read) in the SampleAuxInfoReader constructor. The SampleAuxInfoReader constructor iterates over saiz->get_num_samples() samples but doesn't validate that this count is consistent with the number of chunks in the chunks vector. When saiz declares mo
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:cd214493ea27e6f265fb93100098f6d28c1b228b534da45002faa1300edec5f1
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"libheif","vendor":"strukturag","versions":[{"status":"affected","version":"< 1.22.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:8b227ff78a513e67552db2863743be52dc335256eb3bb28a99de999c690bdc13 · sha256:4a3550b9d5bff17d… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.1,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"ACTIVE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:8b227ff78a513e67552db2863743be52dc335256eb3bb28a99de999c690bdc13 · sha256:4a3550b9d5bff17d… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-125","description":"CWE-125: Out-of-bounds Read","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:8b227ff78a513e67552db2863743be52dc335256eb3bb28a99de999c690bdc13 · sha256:4a3550b9d5bff17d… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/strukturag/libheif/releases/tag/v1.22.0","tags":["x_refsource_MISC"],"url":"https://github.com/strukturag/libheif/releases/tag/v1.22.0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:8b227ff78a513e67552db2863743be52dc335256eb3bb28a99de999c690bdc13 · sha256:4a3550b9d5bff17d… · /containers/cna/references/1
{"name":"https://github.com/strukturag/libheif/security/advisories/GHSA-xj92-xjff-h8w3","tags":["x_refsource_CONFIRM"],"url":"https://github.com/strukturag/libheif/security/advisories/GHSA-xj92-xjff-h8w3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:8b227ff78a513e67552db2863743be52dc335256eb3bb28a99de999c690bdc13 · sha256:4a3550b9d5bff17d… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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