{"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": "2026-10-06T17:50:15.754Z"}, "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"}}}}

{}

{"affected": [{"affectedData": [{"product": "ImageSharp", "vendor": "SixLabors", "versions": [{"status": "affected", "version": ">= 2.1.0, < 4.1.2"}]}], "source": "security-advisories@github.com"}], "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": "2026-10-06T20:03:40.690", "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"}]}, "published": "2026-10-06T18:16:53.250", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/SixLabors/ImageSharp/commit/a9498c6db3642ef92c712ebc81e706914ac16a95"}, {"source": "security-advisories@github.com", "url": "https://github.com/SixLabors/ImageSharp/pull/3187"}, {"source": "security-advisories@github.com", "url": "https://github.com/SixLabors/ImageSharp/releases/tag/v4.1.2"}, {"source": "security-advisories@github.com", "url": "https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-jjfr-hcj7-qf5w"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"created": "2026-10-06T20:15:05.843443+00:00", "updated": "2026-10-06T20:15:05.843448+00:00", "vendors": []}