{"action":"Upgrade openexr to 3.3.7 or later.","affected":[{"fixed":"3.3.7","introduced":"3.3.0"},{"fixed":"3.4.5","introduced":"3.4.0"}],"component":"openexr","cve_ids":["CVE-2026-26981"],"ecosystem":"PyPI","epss":0.00569,"exploited":false,"fixed_versions":["3.3.7","3.4.5"],"ghsa_id":"GHSA-q6vj-wxvf-5m8c","id":"tcs_01M5KH1Y4T72225DMPDVJ36MN4","modified_at":"2026-07-13T16:32:33.709125320Z","published_at":"2026-07-13T14:36:48.582513Z","references":["https://osv.dev/vulnerability/PYSEC-2026-2849","https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-q6vj-wxvf-5m8c","https://nvd.nist.gov/vuln/detail/CVE-2026-26981","https://github.com/AcademySoftwareFoundation/openexr/commit/6bb2ddf1068573d073edf81270a015b38cc05cef","https://github.com/AcademySoftwareFoundation/openexr/commit/d2be382758adc3e9ab83a3de35138ec28d93ebd8","https://github.com/AcademySoftwareFoundation/openexr","https://pypi.org/project/openexr","https://github.com/advisories/GHSA-q6vj-wxvf-5m8c"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"PYSEC-2026-2849","url":"https://osv.dev/vulnerability/PYSEC-2026-2849"}],"summary":"OpenEXR has heap-buffer-overflow via signed integer underflow in ImfContextInit.cpp"}