CVE-2026-42216

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From versions 3.0.0 to before 3.2.9, 3.3.0 to before 3.3.11, and 3.4.0 to before 3.4.11, IDManifest::init() reconstructs strings from a prefix-compressed representation. If the previous string is longer than 255 bytes, the next string is expected to begin with a 2-byte prefix length. The code reads stringList[i][0] and stringList[i][1] without checking that the current string has at least two bytes. This issue has been patched in versions 3.2.9, 3.3.11, and 3.4.11.

CVSS v3 9.1 CRITICAL

9.1^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-65j8-95g9-jgj4	Exploit Mitigation Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:38498
https://access.redhat.com/errata/RHSA-2026:38499
https://access.redhat.com/errata/RHSA-2026:39024
https://access.redhat.com/errata/RHSA-2026:39025
https://access.redhat.com/errata/RHSA-2026:39026
https://access.redhat.com/errata/RHSA-2026:39027
https://access.redhat.com/security/cve/CVE-2026-42216
https://bugzilla.redhat.com/show_bug.cgi?id=2467633
https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-65j8-95g9-jgj4	Exploit Mitigation Vendor Advisory
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42216.json

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:openexr:openexr::::::::
	cpe:2.3:a:openexr:openexr::::::::
	cpe:2.3:a:openexr:openexr::::::::

History

No history.

Information

Published : 2026-05-07 04:16

Updated : 2026-07-15 02:21

NVD link : CVE-2026-42216

Mitre link : CVE-2026-42216

CVE.ORG link : CVE-2026-42216

JSON object : View

Products Affected

openexr

openexr

CWE

CWE-125

Out-of-bounds Read

CWE-130

Improper Handling of Length Parameter Inconsistency

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From versions 3.0.0 to before 3.2.9, 3.3.0 to before 3.3.11, and 3.4.0 to before 3.4.11, IDManifest::init() reconstructs strings from a prefix-compressed representation. If the previous string is longer than 255 bytes, the next string is expected to begin with a 2-byte prefix length. The code reads stringList[i][0] and stringList[i][1] without checking that the current string has at least two bytes. This issue has been patched in versions 3.2.9, 3.3.11, and 3.4.11."}], "lastModified": "2026-07-15T02:21:28.840", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:openexr:openexr:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8CDF6C2E-6EC4-4383-8198-3769409030E6", "versionEndExcluding": "3.2.9", "versionStartIncluding": "3.0.0"}, {"criteria": "cpe:2.3:a:openexr:openexr:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8023AC7C-E2D1-4626-A4CC-585672ABAA66", "versionEndExcluding": "3.3.11", "versionStartIncluding": "3.3.0"}, {"criteria": "cpe:2.3:a:openexr:openexr:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "079D2FDB-45A0-4382-8EFC-E95EA7430D0D", "versionEndExcluding": "3.4.11", "versionStartIncluding": "3.4.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}