{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-106117","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-10-06T15:33:55.333Z","datePublished":"2026-10-06T17:53:46.448Z","dateUpdated":"2026-10-06T18:20:09.862Z"},"containers":{"cna":{"title":"ImageSharp: CCITT fax decompression (T4/Modified Huffman): unbounded WriteBits overflows strip buffer — heap OOB write in SixLabors.ImageSharp","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-jj3q-cwqj-842r","tags":["x_refsource_CONFIRM"],"url":"https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-jj3q-cwqj-842r"},{"name":"https://github.com/SixLabors/ImageSharp/pull/3176","tags":["x_refsource_MISC"],"url":"https://github.com/SixLabors/ImageSharp/pull/3176"},{"name":"https://github.com/SixLabors/ImageSharp/commit/e8892ecd8a95dee95c4480fda51cfe0b32f3b846","tags":["x_refsource_MISC"],"url":"https://github.com/SixLabors/ImageSharp/commit/e8892ecd8a95dee95c4480fda51cfe0b32f3b846"},{"name":"https://github.com/SixLabors/ImageSharp/releases/tag/v4.1.1","tags":["x_refsource_MISC"],"url":"https://github.com/SixLabors/ImageSharp/releases/tag/v4.1.1"}],"affected":[{"vendor":"SixLabors","product":"ImageSharp","versions":[{"version":">= 3.0.0, < 4.1.1","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-10-06T17:53:46.448Z"},"descriptions":[{"lang":"en","value":"ImageSharp is a 2D graphics library. From 3.0.0 until 4.1.1, decoding a strip TIFF using CCITT Group 3 or Modified Huffman compression can pass attacker-expanded runs to BitWriterUtils.WriteBits without first checking the current row width. T4TiffCompression.WritePixelRun can accumulate oversized makeup-code runs, and ModifiedHuffmanTiffCompression.Decompress validates the width only after writing. The unchecked writes can overflow the strip buffer, corrupt heap memory, and terminate the process. This strip-path vulnerability is distinct from the tiled decompressor-width mismatch. This issue is fixed in version 4.1.1."}],"source":{"advisory":"GHSA-jj3q-cwqj-842r","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-jj3q-cwqj-842r","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-06T18:19:48.989417Z","id":"CVE-2026-106117","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":"2026-10-06T18:20:09.862Z"}}]}}