Baitaphish
Security intelligence
SearchLatest briefing
CVE Explorer

CVE-2026-49271

libheif is a HEIF and AVIF file format decoder and encoder. Prior to version 1.22.1, the uncompressed HEIF decoder validates explicit icef compressed-unit offsets using unit_offset + unit_size. Because the addition can wrap, a crafted HEIF file can pass the range check and then construct a vector from iterators outside the compressed item buffer, producing an out-of-bounds heap read and crash. Version 1.22.1 patches the issue.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:eceef630d300b567b30013d1065b464ebf270a01f882f436e9c82e58a8285d20
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":"< 1.22.1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f35fd6721388bc5628359fdbfa6afc57145d9bf70fce03aa8d84c27e97084c14 · sha256:656b6c1e78686c1f… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:f35fd6721388bc5628359fdbfa6afc57145d9bf70fce03aa8d84c27e97084c14 · sha256:656b6c1e78686c1f… · /containers/cna/metrics/0/cvssV3_1

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:f35fd6721388bc5628359fdbfa6afc57145d9bf70fce03aa8d84c27e97084c14 · sha256:656b6c1e78686c1f… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"tags":["exploit"],"url":"https://github.com/strukturag/libheif/security/advisories/GHSA-r7qj-cg5r-r6vf"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f35fd6721388bc5628359fdbfa6afc57145d9bf70fce03aa8d84c27e97084c14 · sha256:656b6c1e78686c1f… · /containers/adp/0/references/0
{"name":"https://github.com/strukturag/libheif/security/advisories/GHSA-r7qj-cg5r-r6vf","tags":["x_refsource_CONFIRM"],"url":"https://github.com/strukturag/libheif/security/advisories/GHSA-r7qj-cg5r-r6vf"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f35fd6721388bc5628359fdbfa6afc57145d9bf70fce03aa8d84c27e97084c14 · sha256:656b6c1e78686c1f… · /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.

← Back to CVE Explorer