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CVE-2026-32882

libheif is a HEIF and AVIF file format decoder and encoder. Versions 1.21.2 and prior contain a heap buffer over-read in HeifPixelImage::overlay() in libheif/pixelimage.cc. When compositing an overlay image (iovl) whose child image has a different bit depth for the alpha channel than for the color channels, the function indexes into the alpha plane using the color channel stride (in_stride) instead of the previously retrieved alpha_stride, causing reads past the end of the alpha buffer (up to 3,
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:be37312dd4d0bb40ca5d169678ed3bd521434b21d1f30fb4dfdbe9a29ccb51b0
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10"],"defaultStatus":"unaffected","packageName":"glycin-loaders","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:80b0b2548ecb0d1433cc81166764edddadcf39f816f0fdeed1b50aa83c95ac1e · sha256:8510de225ac32eda… · /containers/adp/1/affected/0

{"product":"libheif","vendor":"strukturag","versions":[{"status":"affected","version":"< 1.22.0"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:80b0b2548ecb0d1433cc81166764edddadcf39f816f0fdeed1b50aa83c95ac1e · sha256:8510de225ac32eda… · /containers/cna/affected/0
cwe · 2 assertions

{"cweId":"CWE-125","description":"CWE-125: Out-of-bounds Read","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:80b0b2548ecb0d1433cc81166764edddadcf39f816f0fdeed1b50aa83c95ac1e · sha256:8510de225ac32eda… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-125","description":"Out-of-bounds Read","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:80b0b2548ecb0d1433cc81166764edddadcf39f816f0fdeed1b50aa83c95ac1e · sha256:8510de225ac32eda… · /containers/adp/1/problemTypes/0/descriptions/0

Affected products and versions

2 source assertions
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10"],"defaultStatus":"unaffected","packageName":"glycin-loaders","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:80b0b2548ecb0d1433cc81166764edddadcf39f816f0fdeed1b50aa83c95ac1e · sha256:8510de225ac32eda… · /containers/adp/1/affected/0
{"product":"libheif","vendor":"strukturag","versions":[{"status":"affected","version":"< 1.22.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:80b0b2548ecb0d1433cc81166764edddadcf39f816f0fdeed1b50aa83c95ac1e · sha256:8510de225ac32eda… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.1,"baseSeverity":"HIGH","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:80b0b2548ecb0d1433cc81166764edddadcf39f816f0fdeed1b50aa83c95ac1e · sha256:8510de225ac32eda… · /containers/cna/metrics/0/cvssV3_1
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.1,"baseSeverity":"HIGH","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:80b0b2548ecb0d1433cc81166764edddadcf39f816f0fdeed1b50aa83c95ac1e · sha256:8510de225ac32eda… · /containers/adp/1/metrics/1/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-125","description":"CWE-125: Out-of-bounds Read","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:80b0b2548ecb0d1433cc81166764edddadcf39f816f0fdeed1b50aa83c95ac1e · sha256:8510de225ac32eda… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-125","description":"Out-of-bounds Read","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:80b0b2548ecb0d1433cc81166764edddadcf39f816f0fdeed1b50aa83c95ac1e · sha256:8510de225ac32eda… · /containers/adp/1/problemTypes/0/descriptions/0

Source references

6 source assertions
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-32882"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:80b0b2548ecb0d1433cc81166764edddadcf39f816f0fdeed1b50aa83c95ac1e · sha256:8510de225ac32eda… · /containers/adp/1/references/0
{"name":"RHBZ#2480000","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2480000"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:80b0b2548ecb0d1433cc81166764edddadcf39f816f0fdeed1b50aa83c95ac1e · sha256:8510de225ac32eda… · /containers/adp/1/references/1
{"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:v2:80b0b2548ecb0d1433cc81166764edddadcf39f816f0fdeed1b50aa83c95ac1e · sha256:8510de225ac32eda… · /containers/cna/references/1
{"name":"https://github.com/strukturag/libheif/security/advisories/GHSA-hg7q-rjr2-8x46","tags":["x_refsource_CONFIRM"],"url":"https://github.com/strukturag/libheif/security/advisories/GHSA-hg7q-rjr2-8x46"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:80b0b2548ecb0d1433cc81166764edddadcf39f816f0fdeed1b50aa83c95ac1e · sha256:8510de225ac32eda… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/strukturag/libheif/security/advisories/GHSA-hg7q-rjr2-8x46"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:80b0b2548ecb0d1433cc81166764edddadcf39f816f0fdeed1b50aa83c95ac1e · sha256:8510de225ac32eda… · /containers/adp/0/references/0
{"tags":["x_sadp-csaf-vex"],"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-32882.json"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:80b0b2548ecb0d1433cc81166764edddadcf39f816f0fdeed1b50aa83c95ac1e · sha256:8510de225ac32eda… · /containers/adp/1/references/2

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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