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CVE-2026-32740

A flaw was found in libheif, a library for decoding and encoding HEIF and AVIF image files. This heap-buffer-overflow vulnerability allows a remote attacker to write arbitrary data beyond the intended memory boundary. By crafting a malicious HEIF/AVIF file with a specific grid tile configuration, an attacker could potentially achieve arbitrary code execution or cause a denial of service.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:fb51d4602dad5e842af81b356dbeaff0470119b00fde100613e41f339600436a
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

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

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f26574c67237500cbb85f4489d9350b10be8c1bf0be4df7e8be2b3f51df3569e · sha256:8e71a4c59f53ff32… · /containers/cna/affected/0

{"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:f26574c67237500cbb85f4489d9350b10be8c1bf0be4df7e8be2b3f51df3569e · sha256:8e71a4c59f53ff32… · /containers/adp/1/affected/0
cwe · 2 assertions

{"cweId":"CWE-787","description":"Out-of-bounds Write","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f26574c67237500cbb85f4489d9350b10be8c1bf0be4df7e8be2b3f51df3569e · sha256:8e71a4c59f53ff32… · /containers/adp/1/problemTypes/0/descriptions/0

{"cweId":"CWE-787","description":"CWE-787: Out-of-bounds Write","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f26574c67237500cbb85f4489d9350b10be8c1bf0be4df7e8be2b3f51df3569e · sha256:8e71a4c59f53ff32… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

2 source assertions
{"product":"libheif","vendor":"strukturag","versions":[{"status":"affected","version":"< 1.22.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f26574c67237500cbb85f4489d9350b10be8c1bf0be4df7e8be2b3f51df3569e · sha256:8e71a4c59f53ff32… · /containers/cna/affected/0
{"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:f26574c67237500cbb85f4489d9350b10be8c1bf0be4df7e8be2b3f51df3569e · sha256:8e71a4c59f53ff32… · /containers/adp/1/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:f26574c67237500cbb85f4489d9350b10be8c1bf0be4df7e8be2b3f51df3569e · sha256:8e71a4c59f53ff32… · /containers/adp/1/metrics/1/cvssV3_1
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:f26574c67237500cbb85f4489d9350b10be8c1bf0be4df7e8be2b3f51df3569e · sha256:8e71a4c59f53ff32… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-787","description":"Out-of-bounds Write","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f26574c67237500cbb85f4489d9350b10be8c1bf0be4df7e8be2b3f51df3569e · sha256:8e71a4c59f53ff32… · /containers/adp/1/problemTypes/0/descriptions/0
{"cweId":"CWE-787","description":"CWE-787: Out-of-bounds Write","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f26574c67237500cbb85f4489d9350b10be8c1bf0be4df7e8be2b3f51df3569e · sha256:8e71a4c59f53ff32… · /containers/cna/problemTypes/0/descriptions/0

Source references

5 source assertions
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-32740"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f26574c67237500cbb85f4489d9350b10be8c1bf0be4df7e8be2b3f51df3569e · sha256:8e71a4c59f53ff32… · /containers/adp/1/references/0
{"name":"RHBZ#2479969","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2479969"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f26574c67237500cbb85f4489d9350b10be8c1bf0be4df7e8be2b3f51df3569e · sha256:8e71a4c59f53ff32… · /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:f26574c67237500cbb85f4489d9350b10be8c1bf0be4df7e8be2b3f51df3569e · sha256:8e71a4c59f53ff32… · /containers/cna/references/1
{"name":"https://github.com/strukturag/libheif/security/advisories/GHSA-frfr-f3vg-2g6j","tags":["x_refsource_CONFIRM"],"url":"https://github.com/strukturag/libheif/security/advisories/GHSA-frfr-f3vg-2g6j"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f26574c67237500cbb85f4489d9350b10be8c1bf0be4df7e8be2b3f51df3569e · sha256:8e71a4c59f53ff32… · /containers/cna/references/0
{"tags":["x_sadp-csaf-vex"],"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-32740.json"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f26574c67237500cbb85f4489d9350b10be8c1bf0be4df7e8be2b3f51df3569e · sha256:8e71a4c59f53ff32… · /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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