{"action":"Upgrade openexr to 3.4.8 or later.","affected":[{"fixed":"3.4.8","introduced":"3.4.0"},{"introduced":"3.3.0","last_affected":"3.3.8"},{"introduced":"3.2.0","last_affected":"3.2.6"}],"component":"openexr","cve_ids":["CVE-2026-34543"],"ecosystem":"PyPI","epss":0.00482,"exploited":false,"fixed_versions":["3.4.8"],"ghsa_id":"GHSA-vc68-257w-m432","id":"tcs_01M5KFZWB74J46ZXX3GRBA69YC","modified_at":"2026-09-10T03:51:03.423088566Z","published_at":"2026-04-03T21:50:14Z","references":["https://osv.dev/vulnerability/GHSA-vc68-257w-m432","https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-vc68-257w-m432","https://nvd.nist.gov/vuln/detail/CVE-2026-34543","https://github.com/AcademySoftwareFoundation/openexr/commit/5f6d0aaa9e43802917af7db90f181e88e083d3b8","https://github.com/AcademySoftwareFoundation/openexr","https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.4.8"],"severity":{"label":"high"},"sources":[{"source":"osv","source_id":"GHSA-vc68-257w-m432","url":"https://osv.dev/vulnerability/GHSA-vc68-257w-m432"}],"summary":"OpenEXR: Heap information disclosure in PXR24 decompression via unchecked decompressed size (undo_pxr24_impl)"}