{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-106115", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-10-06T15:33:55.333Z", "datePublished": "2026-10-06T17:50:15.754Z", "dateUpdated": "2026-10-09T01:20:52.111Z"}, "containers": {"cna": {"title": "ImageSharp: TIFF CCITT T6 encoder writes beyond an undersized output buffer", "problemTypes": [{"descriptions": [{"cweId": "CWE-787", "lang": "en", "description": "CWE-787: Out-of-bounds Write", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-jjfr-hcj7-qf5w", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-jjfr-hcj7-qf5w"}, {"name": "https://github.com/SixLabors/ImageSharp/pull/3187", "tags": ["x_refsource_MISC"], "url": "https://github.com/SixLabors/ImageSharp/pull/3187"}, {"name": "https://github.com/SixLabors/ImageSharp/commit/a9498c6db3642ef92c712ebc81e706914ac16a95", "tags": ["x_refsource_MISC"], "url": "https://github.com/SixLabors/ImageSharp/commit/a9498c6db3642ef92c712ebc81e706914ac16a95"}, {"name": "https://github.com/SixLabors/ImageSharp/releases/tag/v4.1.2", "tags": ["x_refsource_MISC"], "url": "https://github.com/SixLabors/ImageSharp/releases/tag/v4.1.2"}], "affected": [{"vendor": "SixLabors", "product": "ImageSharp", "versions": [{"version": ">= 2.1.0, < 4.1.2", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-10-06T17:50:15.754Z"}, "descriptions": [{"lang": "en", "value": "ImageSharp is a 2D graphics library. From 2.1.0 until 4.1.2, the TIFF CCITT Group 4 encoder allocates Width times rowsPerStrip bytes even though T6BitCompressor.CompressStrip can emit encoded row data and two 12-bit end-of-facsimile-block codes beyond that capacity. TiffCcittCompressor.WriteCode performs unchecked writes, and a decode-and-re-encode flow can inherit TiffCompression.CcittGroup4Fax and one-bit metadata from attacker-supplied input. The resulting out-of-bounds writes can corrupt memory and terminate the process. This issue is fixed in version 4.1.2."}], "source": {"advisory": "GHSA-jjfr-hcj7-qf5w", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-jjfr-hcj7-qf5w", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-10-09T01:20:30.658521Z", "id": "CVE-2026-106115", "options": [{"Exploitation": "poc"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-09T01:20:52.111Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-106115", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-09T01:20:30.658521Z"}}}], "references": [{"url": "https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-jjfr-hcj7-qf5w", "tags": ["exploit"]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-09T01:20:47.784Z"}}], "cna": {"title": "ImageSharp: TIFF CCITT T6 encoder writes beyond an undersized output buffer", "source": {"advisory": "GHSA-jjfr-hcj7-qf5w", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}}], "affected": [{"vendor": "SixLabors", "product": "ImageSharp", "versions": [{"status": "affected", "version": ">= 2.1.0, < 4.1.2"}]}], "references": [{"url": "https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-jjfr-hcj7-qf5w", "name": "https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-jjfr-hcj7-qf5w", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/SixLabors/ImageSharp/pull/3187", "name": "https://github.com/SixLabors/ImageSharp/pull/3187", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/SixLabors/ImageSharp/commit/a9498c6db3642ef92c712ebc81e706914ac16a95", "name": "https://github.com/SixLabors/ImageSharp/commit/a9498c6db3642ef92c712ebc81e706914ac16a95", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/SixLabors/ImageSharp/releases/tag/v4.1.2", "name": "https://github.com/SixLabors/ImageSharp/releases/tag/v4.1.2", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en", "value": "ImageSharp is a 2D graphics library. From 2.1.0 until 4.1.2, the TIFF CCITT Group 4 encoder allocates Width times rowsPerStrip bytes even though T6BitCompressor.CompressStrip can emit encoded row data and two 12-bit end-of-facsimile-block codes beyond that capacity. TiffCcittCompressor.WriteCode performs unchecked writes, and a decode-and-re-encode flow can inherit TiffCompression.CcittGroup4Fax and one-bit metadata from attacker-supplied input. The resulting out-of-bounds writes can corrupt memory and terminate the process. This issue is fixed in version 4.1.2."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-787", "description": "CWE-787: Out-of-bounds Write"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-10-06T17:50:15.754Z"}}}, "cveMetadata": {"cveId": "CVE-2026-106115", "state": "PUBLISHED", "dateUpdated": "2026-10-09T01:20:52.111Z", "dateReserved": "2026-10-06T15:33:55.333Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-10-06T17:50:15.754Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "ImageSharp", "vendor": "SixLabors", "versions": [{"status": "affected", "version": ">= 2.1.0, < 4.1.2"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:sixlabors:imagesharp:*:*:*:*:*:*:*:*", "matchCriteriaId": "314C452A-FC62-4DC9-A1AC-E54A76061919", "versionEndExcluding": "3.2.0", "versionStartIncluding": "2.1.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:sixlabors:imagesharp:*:*:*:*:*:*:*:*", "matchCriteriaId": "F920B012-BBFB-40DB-B201-165EBA6645D7", "versionEndExcluding": "4.1.2", "versionStartIncluding": "4.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "ImageSharp is a 2D graphics library. From 2.1.0 until 4.1.2, the TIFF CCITT Group 4 encoder allocates Width times rowsPerStrip bytes even though T6BitCompressor.CompressStrip can emit encoded row data and two 12-bit end-of-facsimile-block codes beyond that capacity. TiffCcittCompressor.WriteCode performs unchecked writes, and a decode-and-re-encode flow can inherit TiffCompression.CcittGroup4Fax and one-bit metadata from attacker-supplied input. The resulting out-of-bounds writes can corrupt memory and terminate the process. This issue is fixed in version 4.1.2."}], "id": "CVE-2026-106115", "lastModified": "2026-10-24T01:27:41.513", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-106115", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-10-09T01:20:30.658521Z", "version": "2.0.3"}}]}, "published": "2026-10-06T18:16:53.250", "references": [{"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/SixLabors/ImageSharp/commit/a9498c6db3642ef92c712ebc81e706914ac16a95"}, {"source": "security-advisories@github.com", "tags": ["Issue Tracking", "Patch"], "url": "https://github.com/SixLabors/ImageSharp/pull/3187"}, {"source": "security-advisories@github.com", "tags": ["Release Notes"], "url": "https://github.com/SixLabors/ImageSharp/releases/tag/v4.1.2"}, {"source": "security-advisories@github.com", "tags": ["Exploit", "Vendor Advisory"], "url": "https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-jjfr-hcj7-qf5w"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Vendor Advisory"], "url": "https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-jjfr-hcj7-qf5w"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}