CVE-2026-59183: medium-severity vulnerability in AcademySoftwareFoundation openexr
OpenEXR: Signed Integer Overflow Leading to Out-of-Bounds Memory Access in Deep Tile Decoding
Published
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.5epss 0.2%
OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. In versions 3.1.0 through 3.2.10, 3.3.0 through 3.3.12, and 3.4.0 through 3.4.13, an int32_t multiplication in OpenEXRCore's unpack_sample_table() can overflow while decoding a crafted deep tiled EXR file, producing an invalid pointer that leads to a read from an unmapped memory address and a crash. Because the overflow occurs in the standard decoding path (exr_decoding_run), any application that decodes deep tiled EXR files is affected. This issue is fixed in versions 3.2.11, 3.3.13, and 3.4.14.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Affected products
AcademySoftwareFoundation · openexrRelated CVEs — AcademySoftwareFoundation openexr
In the same product, most dangerous first.
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-2026-34543HIGHOpenEXR: Heap information disclosure in PXR24 decompression via unchecked decompressed size (undo_pxr24_impl)EPSS 0.5%CVE-2026-34588HIGHOpenEXR has a signed 32-bit Overflow in PIZ Decoder Leads to OOB Read/WriteEPSS 0.5%CVE-2026-42216HIGHOpenEXR: Out-of-bounds read in `IDManifest::init()` during prefix expansionEPSS 0.5%
References
https://github.com/AcademySoftwareFoundation/openexr/commit/5e55a64ad1f119a8166542f4b6e034c31b7e043ahttps://github.com/AcademySoftwareFoundation/openexr/commit/a6cf183725b5665ac3fdbec640125fba5ee1ab39https://github.com/AcademySoftwareFoundation/openexr/commit/e2adb5be3bbc3a1f82f2bc06cc9699995a99a607https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-rqp5-pmwm-wj6x