{"id":"UBUNTU-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. From 3.2.0 to before 3.2.7, 3.3.9, and 3.4.9, the DWA lossy decoder constructs temporary per-component block pointers using signed 32-bit arithmetic. For a large enough width, the calculation overflows and later decoder stores operate on a wrapped pointer outside the allocated rowBlock backing store. This vulnerability is fixed in 3.2.7, 3.3.9, and 3.4.9.","modified":"2026-05-07T14:02:50.877114Z","published":"2026-04-06T16:16:00Z","withdrawn":"2026-05-07T12:28:08Z","upstream":["CVE-2026-34589"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-34589"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-34589"},{"type":"REPORT","url":"https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-p8xc-w3q4-h64x"},{"type":"REPORT","url":"https://github.com/AcademySoftwareFoundation/openexr/pull/2328"},{"type":"REPORT","url":"https://github.com/AcademySoftwareFoundation/openexr/commit/e464a33cc5bcd9f7dad2364bf76c08a52a5b0fbf"},{"type":"REPORT","url":"https://github.com/AcademySoftwareFoundation/openexr/commit/ea588c8f075f5915e34931861e15b6c2d3b62561"},{"type":"REPORT","url":"https://github.com/AcademySoftwareFoundation/openexr/commit/ca0139287918775e1fddc0ed0033d694bec033ff"},{"type":"REPORT","url":"https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.2.7"},{"type":"REPORT","url":"https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.3.9"},{"type":"REPORT","url":"https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.4.9"}],"affected":[{"package":{"name":"openexr","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/openexr@2.2.0-10ubuntu2.6+esm3?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.0-1ubuntu3","2.2.0-7ubuntu1","2.2.0-9ubuntu1","2.2.0-10ubuntu2","2.2.0-10ubuntu2.1","2.2.0-10ubuntu2.2","2.2.0-10ubuntu2.3","2.2.0-10ubuntu2.4","2.2.0-10ubuntu2.6","2.2.0-10ubuntu2.6+esm1","2.2.0-10ubuntu2.6+esm2","2.2.0-10ubuntu2.6+esm3"],"ecosystem_specific":{"binaries":[{"binary_name":"libopenexr22","binary_version":"2.2.0-10ubuntu2.6+esm3"},{"binary_name":"openexr","binary_version":"2.2.0-10ubuntu2.6+esm3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34589.json"}},{"package":{"name":"openexr","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/openexr@2.2.0-11.1ubuntu1.9?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.0-11ubuntu1","2.2.0-11.1ubuntu1","2.2.0-11.1ubuntu1.1","2.2.0-11.1ubuntu1.2","2.2.0-11.1ubuntu1.3","2.2.0-11.1ubuntu1.4","2.2.0-11.1ubuntu1.6","2.2.0-11.1ubuntu1.7","2.2.0-11.1ubuntu1.8","2.2.0-11.1ubuntu1.9"],"ecosystem_specific":{"binaries":[{"binary_name":"libopenexr22","binary_version":"2.2.0-11.1ubuntu1.9"},{"binary_version":"2.2.0-11.1ubuntu1.9","binary_name":"openexr"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34589.json"}},{"package":{"name":"openexr","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/openexr@2.3.0-6ubuntu0.5+esm1?arch=source&distro=esm-apps/focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.1-4.1ubuntu1","2.3.0-6","2.3.0-6build1","2.3.0-6ubuntu0.1","2.3.0-6ubuntu0.2","2.3.0-6ubuntu0.3","2.3.0-6ubuntu0.5","2.3.0-6ubuntu0.5+esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libopenexr24","binary_version":"2.3.0-6ubuntu0.5+esm1"},{"binary_version":"2.3.0-6ubuntu0.5+esm1","binary_name":"openexr"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34589.json"}},{"package":{"name":"openexr","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/openexr@2.5.7-1ubuntu0.1~esm1?arch=source&distro=esm-apps/jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.5.4-2","2.5.7-1","2.5.7-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libopenexr25","binary_version":"2.5.7-1ubuntu0.1~esm1"},{"binary_name":"openexr","binary_version":"2.5.7-1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34589.json"}},{"package":{"name":"openexr","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/openexr@3.1.5-5.1build3?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1.5-5.1","3.1.5-5.1build1","3.1.5-5.1build2","3.1.5-5.1build3"],"ecosystem_specific":{"binaries":[{"binary_name":"libopenexr-3-1-30","binary_version":"3.1.5-5.1build3"},{"binary_name":"openexr","binary_version":"3.1.5-5.1build3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34589.json"}},{"package":{"name":"openexr","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/openexr@3.1.13-2?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1.13-2"],"ecosystem_specific":{"binaries":[{"binary_name":"libopenexr-3-1-30","binary_version":"3.1.13-2"},{"binary_name":"openexr","binary_version":"3.1.13-2"}]},"database_specific":{"source":"https://github.com/canon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