{"api_version":"1","generated_at":"2026-08-25T22:57:43+00:00","cve":"CVE-2026-68513","urls":{"html":"https://cve.report/CVE-2026-68513","api":"https://cve.report/api/cve/CVE-2026-68513.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-68513","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-68513"},"summary":{"title":"OpenEXR: Heap buffer overflow in PyOpenEXR from literal/prefixed RGB channel name collision","description":"OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. Versions 3.3.0 through 3.3.12 and 3.4.0 through 3.4.13 contain a heap buffer overflow in PyOpenEXR triggered by a channel-name key collision between literal and prefixed RGB channels. When separate_channels=false, PyOpenEXR maps each physical channel name through channelNameToRGBA() and coalesces the results into a shared RGB array. A crafted flat scanline EXR that contains both a literal channel such as left and prefixed channels such as left.R, left.G, and left.B causes these names to collide, so the wrapper reuses an undersized two-dimensional NumPy array for the coalesced RGB slices and writes out of bounds when OpenEXR.File(path) decodes the pixels. This issue is fixed in versions 3.3.13 and 3.4.14.","state":"PUBLISHED","assigner":"GitHub_M","published_at":"2026-08-25 20:17:02","updated_at":"2026-08-25 20:17:02"},"problem_types":["CWE-122","CWE-787","CWE-122 CWE-122: Heap-based Buffer Overflow","CWE-787 CWE-787: Out-of-bounds Write"],"metrics":[{"version":"3.1","source":"security-advisories@github.com","type":"Secondary","score":"7.1","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H","baseScore":7.1,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"7.1","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H","data":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7.1,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H","version":"3.1"}}],"references":[{"url":"https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-rw5h-3q4v-c3vc","name":"https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-rw5h-3q4v-c3vc","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/AcademySoftwareFoundation/openexr/commit/c1f3ec0d91cfa5a8035ecd00920835ac76e01640","name":"https://github.com/AcademySoftwareFoundation/openexr/commit/c1f3ec0d91cfa5a8035ecd00920835ac76e01640","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/AcademySoftwareFoundation/openexr/commit/d134e3cd81a2e343f2919e86bf949f576b1ab16a","name":"https://github.com/AcademySoftwareFoundation/openexr/commit/d134e3cd81a2e343f2919e86bf949f576b1ab16a","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-68513","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68513","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"AcademySoftwareFoundation","product":"openexr","version":"affected >= 3.3.0, < 3.3.13","platforms":[]},{"source":"CNA","vendor":"AcademySoftwareFoundation","product":"openexr","version":"affected >= 3.4.0, < 3.4.14","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"product":"openexr","vendor":"AcademySoftwareFoundation","versions":[{"status":"affected","version":">= 3.3.0, < 3.3.13"},{"status":"affected","version":">= 3.4.0, < 3.4.14"}]}],"descriptions":[{"lang":"en","value":"OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. Versions 3.3.0 through 3.3.12 and 3.4.0 through 3.4.13 contain a heap buffer overflow in PyOpenEXR triggered by a channel-name key collision between literal and prefixed RGB channels. When separate_channels=false, PyOpenEXR maps each physical channel name through channelNameToRGBA() and coalesces the results into a shared RGB array. A crafted flat scanline EXR that contains both a literal channel such as left and prefixed channels such as left.R, left.G, and left.B causes these names to collide, so the wrapper reuses an undersized two-dimensional NumPy array for the coalesced RGB slices and writes out of bounds when OpenEXR.File(path) decodes the pixels. This issue is fixed in versions 3.3.13 and 3.4.14."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7.1,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-122","description":"CWE-122: Heap-based Buffer Overflow","lang":"en","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-787","description":"CWE-787: Out-of-bounds Write","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-08-25T19:06:11.692Z","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M"},"references":[{"name":"https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-rw5h-3q4v-c3vc","tags":["x_refsource_CONFIRM"],"url":"https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-rw5h-3q4v-c3vc"},{"name":"https://github.com/AcademySoftwareFoundation/openexr/commit/c1f3ec0d91cfa5a8035ecd00920835ac76e01640","tags":["x_refsource_MISC"],"url":"https://github.com/AcademySoftwareFoundation/openexr/commit/c1f3ec0d91cfa5a8035ecd00920835ac76e01640"},{"name":"https://github.com/AcademySoftwareFoundation/openexr/commit/d134e3cd81a2e343f2919e86bf949f576b1ab16a","tags":["x_refsource_MISC"],"url":"https://github.com/AcademySoftwareFoundation/openexr/commit/d134e3cd81a2e343f2919e86bf949f576b1ab16a"}],"source":{"advisory":"GHSA-rw5h-3q4v-c3vc","discovery":"UNKNOWN"},"title":"OpenEXR: Heap buffer overflow in PyOpenEXR from literal/prefixed RGB channel name collision"}},"cveMetadata":{"assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","assignerShortName":"GitHub_M","cveId":"CVE-2026-68513","datePublished":"2026-08-25T19:06:11.692Z","dateReserved":"2026-07-30T16:19:08.082Z","dateUpdated":"2026-08-25T19:06:11.692Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-25 20:17:02","lastModifiedDate":"2026-08-25 20:17:02","problem_types":["CWE-122","CWE-787","CWE-122 CWE-122: Heap-based Buffer Overflow","CWE-787 CWE-787: Out-of-bounds Write"],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H","baseScore":7.1,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.2}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"68513","Ordinal":"1","Title":"OpenEXR: Heap buffer overflow in PyOpenEXR from literal/prefixed","CVE":"CVE-2026-68513","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"68513","Ordinal":"1","NoteData":"OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. Versions 3.3.0 through 3.3.12 and 3.4.0 through 3.4.13 contain a heap buffer overflow in PyOpenEXR triggered by a channel-name key collision between literal and prefixed RGB channels. When separate_channels=false, PyOpenEXR maps each physical channel name through channelNameToRGBA() and coalesces the results into a shared RGB array. A crafted flat scanline EXR that contains both a literal channel such as left and prefixed channels such as left.R, left.G, and left.B causes these names to collide, so the wrapper reuses an undersized two-dimensional NumPy array for the coalesced RGB slices and writes out of bounds when OpenEXR.File(path) decodes the pixels. This issue is fixed in versions 3.3.13 and 3.4.14.","Type":"Description","Title":"OpenEXR: Heap buffer overflow in PyOpenEXR from literal/prefixed"}]}}}