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CVE-2026-32814

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and prior, when decoding a HEIF grid image with strict_decoding=false (the default), a corrupted tile silently fails to decode and the library returns heif_error_Ok with no indication of failure, leading to an uninitialized heap memory information leak. The canvas is allocated via create_clone_image_at_new_size() → plane.alloc() → new (std::nothrow) uint8_t[allocation_size] which does not zero the memory; only the alp
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:87f586f0b89b42dd1e1f5be3c55fecf48aa64ab828fb50bbcb977e6f9f48118e
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-200","description":"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b52d36aa5da7f4e9dea73d89275162968679637a7adf6d6c985fe9ce7ad25e7f · sha256:1f3c7ce2f5c97cc4… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-908","description":"CWE-908: Use of Uninitialized Resource","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b52d36aa5da7f4e9dea73d89275162968679637a7adf6d6c985fe9ce7ad25e7f · sha256:1f3c7ce2f5c97cc4… · /containers/cna/problemTypes/1/descriptions/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:b52d36aa5da7f4e9dea73d89275162968679637a7adf6d6c985fe9ce7ad25e7f · sha256:1f3c7ce2f5c97cc4… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b52d36aa5da7f4e9dea73d89275162968679637a7adf6d6c985fe9ce7ad25e7f · sha256:1f3c7ce2f5c97cc4… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-200","description":"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b52d36aa5da7f4e9dea73d89275162968679637a7adf6d6c985fe9ce7ad25e7f · sha256:1f3c7ce2f5c97cc4… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-908","description":"CWE-908: Use of Uninitialized Resource","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b52d36aa5da7f4e9dea73d89275162968679637a7adf6d6c985fe9ce7ad25e7f · sha256:1f3c7ce2f5c97cc4… · /containers/cna/problemTypes/1/descriptions/0

Source references

3 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:b52d36aa5da7f4e9dea73d89275162968679637a7adf6d6c985fe9ce7ad25e7f · sha256:1f3c7ce2f5c97cc4… · /containers/cna/references/1
{"tags":["exploit"],"url":"https://github.com/strukturag/libheif/security/advisories/GHSA-4m8r-34pg-rvwc"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b52d36aa5da7f4e9dea73d89275162968679637a7adf6d6c985fe9ce7ad25e7f · sha256:1f3c7ce2f5c97cc4… · /containers/adp/0/references/0
{"name":"https://github.com/strukturag/libheif/security/advisories/GHSA-4m8r-34pg-rvwc","tags":["x_refsource_CONFIRM"],"url":"https://github.com/strukturag/libheif/security/advisories/GHSA-4m8r-34pg-rvwc"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b52d36aa5da7f4e9dea73d89275162968679637a7adf6d6c985fe9ce7ad25e7f · sha256:1f3c7ce2f5c97cc4… · /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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