{"schemaVersion":3,"id":"CVE-2026-59187","aliases":["UBUNTU-CVE-2026-59187","DEBIAN-CVE-2026-59187"],"status":"published","duplicateOf":null,"title":null,"description":"OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. OpenEXR versions 3.3.0 through 3.3.12 and 3.4.0 through 3.4.13 are vulnerable to a heap out-of-bounds write when exrmetrics reads a crafted deep scanline EXR. This occurs with pixel conversion options such as --pixelmode float or --bench because DeepSlice requests FLOAT output while the backing sample buffers are allocated using the input HALF element size. The issue is fixed in versions 3.3.13 and 3.4.14.","dates":{"published":"2026-08-25T16:38:51.404Z","modified":"2026-08-25T17:52:03.356Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.1,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":7.1,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Ubuntu","score":7.1,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","exploitability":7.2,"impact":7,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Debian","score":7.1,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","exploitability":7.2,"impact":7,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":7.1,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00402,"percentile":0.33232,"severity":"low","asOf":"2026-10-21T00:00:00.000Z","change":{"pp":0.185,"baselineDate":"2026-09-21T00:00:00.000Z","baselineScore":0.00217},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00402,"percentile":0.33232}],"last30":[{"date":"2026-09-21T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00217,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00402,"percentile":0.33232}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-122","name":"Heap-based Buffer Overflow","description":"A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().","type":"weakness","status":"Draft","abstraction":"Variant","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/122.html"},{"id":"CWE-787","name":"Out-of-bounds Write","description":"The product writes data past the end, or before the beginning, of the intended buffer.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/787.html"}],"affected":[{"vendor":"academysoftwarefoundation","product":"openexr","name":"openexr","label":"openexr","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 3.3.0, < 3.3.13","noFixRecorded":false,"fixedIn":null},{"text":"≥ 3.4.0, < 3.4.14","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 3.3.0, < 3.3.13 | ≥ 3.4.0, < 3.4.14","eol":null,"hubHref":"/vendor/academysoftwarefoundation/openexr"},{"vendor":"debian","product":"openexr","name":"openexr","label":"openexr","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/openexr","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null},{"text":"< 3.4.14-0.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"All versions (No fix recorded) | < 3.4.14-0.1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"openexr","name":"openexr","label":"openexr","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/openexr","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null}],"affectedCount":3,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-6jj8-cxcr-j8hm","label":"github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-6jj8-cxcr-j8hm","hostname":"github.com","tags":["X Refsource CONFIRM","REPORT"]},{"url":"https://github.com/AcademySoftwareFoundation/openexr/commit/46e70220dc91dbc1341fac4671704e970b450585","label":"github.com/AcademySoftwareFoundation/openexr/commit/46e70220dc91dbc1341fac4671704e970b450585","hostname":"github.com","tags":["X Refsource MISC","REPORT"]},{"url":"https://github.com/AcademySoftwareFoundation/openexr/commit/7e772dd704b9b5d6dc2564647d89f7813f608e94","label":"github.com/AcademySoftwareFoundation/openexr/commit/7e772dd704b9b5d6dc2564647d89f7813f608e94","hostname":"github.com","tags":["X Refsource MISC","REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-59187","label":"ubuntu.com/security/CVE-2026-59187","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-59187","label":"www.cve.org/CVERecord?id=CVE-2026-59187","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-59187","label":"security-tracker.debian.org/tracker/CVE-2026-59187","hostname":"security-tracker.debian.org","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":["OPENSUSE-SU-2026:11612-1","OPENSUSE-SU-2026:12184-1"],"duplicates":[],"related":["OPENSUSE-SU-2026:11612-1","OPENSUSE-SU-2026:12184-1"]},"timeline":[{"kind":"published","date":"2026-08-25T16:38:51.404Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-08-25T17:52:03.356Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":28,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-22T05:05:00.507Z","stale":false,"partial":false}}