{"id":"CVE-2026-40250","summary":"OpenEXR has integer overflow in DWA decoder outBufferEnd pointer arithmetic (missed variant of CVE-2026-34589)","details":"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:1040` performs `chan-\u003ewidth * chan-\u003ebytes_per_element` in `int32` arithmetic without a `(size_t)` cast. This is the same overflow pattern fixed in other decoders by CVE-2026-34589/34588/34544, 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:1040`.","aliases":["GHSA-m5qw-23x2-6phj"],"modified":"2026-10-28T02:31:11.763029401Z","published":"2026-04-21T01:33:00.212Z","related":["SUSE-SU-2026:1712-1","SUSE-SU-2026:21433-1","openSUSE-SU-2026:10665-1","openSUSE-SU-2026:20652-1"],"database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-190"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40250.json"},"references":[{"type":"WEB","url":"https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.2.8"},{"type":"WEB","url":"https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.3.10"},{"type":"WEB","url":"https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.4.10"},{"type":"ADVISORY","url":"https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-m5qw-23x2-6phj"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40250.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40250"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/academysoftwarefoundation/openexr","events":[{"introduced":"456bf42dc2fddb647c0e9ab911656e5cf757fc36"},{"fixed":"f8118548eb5e661c7987201649872642999fa6d1"},{"introduced":"c7d3eac70ccde2c4ed484c6638b83ba872f71464"},{"fixed":"eed3172fb3a6807f59a068d0fc367d540a1789d4"},{"introduced":"20a65852895894434bea88613f6d29ac8e88bd6e"},{"fixed":"67de2bffbd7da508f75fbdc56e6e551a4e31fb83"}],"database_specific":{"extracted_events":[{"source":"CPE_RANGE","cpe":"cpe:2.3:a:openexr:openexr:*:*:*:*:*:*:*:*","range":[{"introduced":"3.2.0"},{"fixed":"3.2.8"}]},{"range":[{"introduced":"3.3.0"},{"fixed":"3.3.10"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:openexr:openexr:*:*:*:*:*:*:*:*"},{"range":[{"introduced":"3.4.0"},{"fixed":"3.4.10"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:openexr:openexr:*:*:*:*:*:*:*:*"},{"range":[{"fixed":"f8118548eb5e661c7987201649872642999fa6d1"}],"source":"REFERENCES_TAG","original_tag":"v3.2.8"},{"source":"REFERENCES_TAG","original_tag":"v3.3.10","range":[{"fixed":"eed3172fb3a6807f59a068d0fc367d540a1789d4"}]},{"source":"REFERENCES_TAG","original_tag":"v3.4.10","range":[{"fixed":"67de2bffbd7da508f75fbdc56e6e551a4e31fb83"}]}]}}],"versions":["v3.3.10-rc","v3.2.7-rc","v3.2.7","v3.3.9-rc2","v3.3.9","v3.4.9","v3.3.9-rc","v3.2.6-rc","v3.2.6","v3.3.8-rc","v3.3.8","v3.4.9-rc","v3.4.8-rc","v3.4.8","v3.4.7","v3.4.7-rc","v3.4.6","v3.4.6-rc","v3.2.5-rc","v3.2.5","v3.3.7-rc4","v3.3.7","v3.4.5","v3.4.5-rc","v3.3.7-rc3","v3.3.7-rc2","v3.3.7-rc","v3.3.6","v3.4.4-rc2","v3.4.4","v3.4.4-rc","v3.4.3-rc3","v3.4.3","v3.3.6-rc4","v3.3.6-rc3","v3.4.3-rc2","v3.2.4-rc2","v3.2.4","v3.3.6-rc2","v3.4.3-rc","v3.3.6-rc","v3.3.5","v3.4.2-rc2","v3.4.2","v3.4.2-rc","v3.4.1-rc2","v3.4.1","v3.4.1-rc","v3.4.0","v3.3.5-rc3","v3.3.5-rc","v3.3.4-rc","v3.3.4","v3.3.3-rc1","v3.3.3","v3.3.3-rc","v3.3.2-rc4","v3.3.2","v3.3.2-rc3","v3.3.2-rc2","v3.3.2-rc","v3.3.1-rc","v3.3.1","v3.3.0-rc2","v3.3.0","v3.2.4-rc","v3.2.3-rc2","v3.2.3","v3.2.3-rc","v3.2.2","v3.2.2-rc2","v3.2.2-rc","v3.2.1-rc","v3.2.1","v3.2.0-rc4","v3.2.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40250.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}]}