CVE detail
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.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 24.0 · diversity 13.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
10 source links · newest first
- https://access.redhat.com/errata/RHSA-2026:39027access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMay 7, 2026, 4:16 AM - https://access.redhat.com/errata/RHSA-2026:39026access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMay 7, 2026, 4:16 AM - https://access.redhat.com/errata/RHSA-2026:39025access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMay 7, 2026, 4:16 AM - https://access.redhat.com/errata/RHSA-2026:39024access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMay 7, 2026, 4:16 AM - https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42216.jsonsecurity.access.redhat.com
No excerpt available.
Vendor Advisorysecurity.access.redhat.comMay 7, 2026, 4:16 AM - https://bugzilla.redhat.com/show_bug.cgi?id=2467633bugzilla.redhat.com
No excerpt available.
Exploitbugzilla.redhat.comMay 7, 2026, 4:16 AM - https://access.redhat.com/security/cve/CVE-2026-42216access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMay 7, 2026, 4:16 AM - https://access.redhat.com/errata/RHSA-2026:38499access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMay 7, 2026, 4:16 AM - https://access.redhat.com/errata/RHSA-2026:38498access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMay 7, 2026, 4:16 AM - https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-65j8-95g9-jgj4github.com
No excerpt available.
Exploitgithub.comMay 7, 2026, 4:16 AM
Exploit code
Public exploit repository references
Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.
0 repository references · best confidence N/A · max 0 stars
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