CVE-2026-42216: fallo de gravedad alta en AcademySoftwareFoundation openexr
OpenEXR: Out-of-bounds read in `IDManifest::init()` during prefix expansion
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 8.8epss 0.5%
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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N
Productos afectados
AcademySoftwareFoundation · openexrCVEs relacionadas — AcademySoftwareFoundation openexr
En el mismo producto, de las más peligrosas a las menos.
CVE-2026-34545HIGHOpenEXR: integer overflow lead to OOB in HTJ2K decoderEPSS 0.6%CVE-2026-26981MEDIUMOpenEXR has heap-buffer-overflow via signed integer underflow in ImfContextInit.cppEPSS 0.6%CVE-2025-48072MEDIUMOpenEXR's Inaccurate Pointer Arithmetic can Cause an Out of Bounds HeapEPSS 0.6%CVE-2026-34588HIGHOpenEXR has a signed 32-bit Overflow in PIZ Decoder Leads to OOB Read/WriteEPSS 0.5%CVE-2026-34543HIGHOpenEXR: Heap information disclosure in PXR24 decompression via unchecked decompressed size (undo_pxr24_impl)EPSS 0.5%CVE-2026-68516MEDIUMOpenEXR: HTJ2K SIZ image-offset gap stack buffer overflowEPSS 0.5%
Referencias
https://access.redhat.com/errata/RHSA-2026:38498https://access.redhat.com/errata/RHSA-2026:38499https://access.redhat.com/errata/RHSA-2026:39024https://access.redhat.com/errata/RHSA-2026:39025https://access.redhat.com/errata/RHSA-2026:39026https://access.redhat.com/errata/RHSA-2026:39027https://access.redhat.com/security/cve/CVE-2026-42216https://bugzilla.redhat.com/show_bug.cgi?id=2467633https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-65j8-95g9-jgj4https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42216.json