OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In versions 3.4.0 through 3.4.9, 3.3.0 through 3.3.9, and 3.2.0 through 3.2.7, `internal_dwa_compressor.h:1722` performs `curc->width * curc->height` in `int32` arithmetic without a `(size_t)` cast. This is the same overflow pattern fixed in other locations by the recent CVE-2026-34589 batch, but this line was missed. Versions 3.4.10, 3.3.10, and 3.2.8 contain a fix that addresses `internal_dwa_compressor.h:1722`.
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Thu, 23 Apr 2026 00:15:00 +0000
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Openexr
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| CPEs | cpe:2.3:a:openexr:openexr:*:*:*:*:*:*:*:* | |
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Openexr
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Academysoftwarefoundation
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Academysoftwarefoundation openexr |
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ssvc
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| Description | OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In versions 3.4.0 through 3.4.9, 3.3.0 through 3.3.9, and 3.2.0 through 3.2.7, `internal_dwa_compressor.h:1722` performs `curc->width * curc->height` in `int32` arithmetic without a `(size_t)` cast. This is the same overflow pattern fixed in other locations by the recent CVE-2026-34589 batch, but this line was missed. Versions 3.4.10, 3.3.10, and 3.2.8 contain a fix that addresses `internal_dwa_compressor.h:1722`. | |
| Title | OpenEXR has integer overflow in DWA setupChannelData planarUncRle pointer arithmetic (missed variant of CVE-2026-34589) | |
| Weaknesses | CWE-190 | |
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cvssV4_0
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-04-21T01:30:55.061Z
Updated: 2026-04-23T03:55:56.354Z
Reserved: 2026-04-10T17:31:45.786Z
Link: CVE-2026-40244
Updated: 2026-04-21T19:31:35.069Z
Status : Analyzed
Published: 2026-04-21T02:16:08.060
Modified: 2026-04-22T18:41:48.990
Link: CVE-2026-40244
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