CVE Explorer

CVE-2026-47709

libheif is a HEIF and AVIF file format decoder and encoder. Versions prior to 1.22.0 crashes in the public C API `heif_image_handle_get_image_tiling()` when a malformed uncompressed HEIF image item has an associated `uncC` property but no associated `ispe` property. In debug builds this trips the `ispe && uncC` assertion in `ImageItem_uncompressed::get_heif_image_tiling()`. In a release/NDEBUG ASan build, the same file causes a null pointer read at address `0xa8`. Version 1.22.0 fixes the issue.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:16925a394c86aab8fa9d4b938452dcf5e44ada48db13cfa2ad37f98f843ac4f8

Known exploited

Not asserted

Disputed

Stale source

Conflicts

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:v2:972e148fe12ae6a0765719dc5a0938e64ab8d983c9a70e52fd63e74e0b99c89f · sha256:5dd5dc915c2408b3… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"LOCAL","baseScore":6.9,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:972e148fe12ae6a0765719dc5a0938e64ab8d983c9a70e52fd63e74e0b99c89f · sha256:5dd5dc915c2408b3… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion

{"cweId":"CWE-476","description":"CWE-476: NULL Pointer Dereference","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:972e148fe12ae6a0765719dc5a0938e64ab8d983c9a70e52fd63e74e0b99c89f · sha256:5dd5dc915c2408b3… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions

{"name":"https://github.com/strukturag/libheif/issues/1802","tags":["x_refsource_MISC"],"url":"https://github.com/strukturag/libheif/issues/1802"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:972e148fe12ae6a0765719dc5a0938e64ab8d983c9a70e52fd63e74e0b99c89f · sha256:5dd5dc915c2408b3… · /containers/cna/references/1

{"name":"https://github.com/strukturag/libheif/pull/1806","tags":["x_refsource_MISC"],"url":"https://github.com/strukturag/libheif/pull/1806"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:972e148fe12ae6a0765719dc5a0938e64ab8d983c9a70e52fd63e74e0b99c89f · sha256:5dd5dc915c2408b3… · /containers/cna/references/2

{"tags":["exploit"],"url":"https://github.com/strukturag/libheif/security/advisories/GHSA-4h72-vqgp-9376"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:972e148fe12ae6a0765719dc5a0938e64ab8d983c9a70e52fd63e74e0b99c89f · sha256:5dd5dc915c2408b3… · /containers/adp/0/references/0

{"name":"https://github.com/strukturag/libheif/security/advisories/GHSA-4h72-vqgp-9376","tags":["x_refsource_CONFIRM"],"url":"https://github.com/strukturag/libheif/security/advisories/GHSA-4h72-vqgp-9376"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:972e148fe12ae6a0765719dc5a0938e64ab8d983c9a70e52fd63e74e0b99c89f · sha256:5dd5dc915c2408b3… · /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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