CVE-2026-65979
- Source
- https://cve.org/CVERecord?id=CVE-2026-65979
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-65979.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-65979
- Aliases
-
- GHSA-3j9c-j7c9-x293
- Downstream
- Related
- Published
- 2026-08-25T18:58:25Z
- Modified
- 2026-10-28T11:17:12Z
- Severity
-
- 6.7 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- OpenEXR: Out-of-bounds read in HTJ2K decoder from unvalidated chunk header length (PLEN)
- Details
-
OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. From version 3.4.0 through 3.4.12, the HTJ2K decoder parses a header-length field (PLEN) from a chunk's compressed data but never checks that this value fits within the available buffer before using it. When decoding, it advances the codestream pointer by the attacker-supplied header size and passes the resulting offset and remaining length to the OpenJPH memory-input path, so a crafted value pushes the pointer past the end of the buffer and causes an out-of-bounds read. Because this field comes straight from attacker-controlled EXR chunk data, the flaw is reachable during normal decoding of an untrusted file. This issue is fixed in version 3.4.13.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-125", "CWE-20" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/65xxx/CVE-2026-65979.json" }- References
-
- https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.4.13
- https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-3j9c-j7c9-x293
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/65xxx/CVE-2026-65979.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-65979
- https://github.com/AcademySoftwareFoundation/openexr/commit/c7af2d233b7b2a4452c11f26cf47584cc2b35721
Affected packages
Git / github.com/academysoftwarefoundation/openexr
Affected ranges
- Type
- GIT
- Repo
- https://github.com/academysoftwarefoundation/openexr
- Events
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "3.4.0" }, { "fixed": "3.4.13" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" }, { "range": [ { "fixed": "c7af2d233b7b2a4452c11f26cf47584cc2b35721" } ], "source": "REFERENCES_COMMIT" }, { "original_tag": "v3.4.13", "range": [ { "fixed": "c1194b2cb23a1bdf76fe5e756b22e8436b9a98c9" } ], "source": "REFERENCES_TAG" } ] }
Affected versions
v3.*
v3.4.0
v3.4.1
v3.4.1-rc
v3.4.1-rc2
v3.4.10
v3.4.10-rc
v3.4.11
v3.4.11-rc
v3.4.11-rc2
v3.4.11-rc3
v3.4.12
v3.4.12-rc2
v3.4.2
v3.4.2-rc
v3.4.2-rc2
v3.4.3
v3.4.3-rc
v3.4.3-rc2
v3.4.3-rc3
v3.4.4
v3.4.4-rc
v3.4.4-rc2
v3.4.5
v3.4.5-rc
v3.4.6
v3.4.6-rc
v3.4.7
v3.4.7-rc
v3.4.8
v3.4.8-rc
v3.4.9
v3.4.9-rc
Database specific
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-65979.json"
vanir_signatures
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vanir_signatures_modified
"2026-10-28T11:17:12Z"