{"id":"CVE-2026-106117","sourceIdentifier":"security-advisories@github.com","published":"2026-10-06T18:16:53.550","lastModified":"2026-10-06T20:03:40.690","vulnStatus":"Undergoing Analysis","cveTags":[],"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."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"SixLabors","product":"ImageSharp","versions":[{"version":">= 3.0.0, < 4.1.1","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-10-06T18:19:48.989417Z","id":"CVE-2026-106117","options":[{"exploitation":"poc"},{"automatable":"yes"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-787"}]}],"references":[{"url":"https://github.com/SixLabors/ImageSharp/commit/e8892ecd8a95dee95c4480fda51cfe0b32f3b846","source":"security-advisories@github.com"},{"url":"https://github.com/SixLabors/ImageSharp/pull/3176","source":"security-advisories@github.com"},{"url":"https://github.com/SixLabors/ImageSharp/releases/tag/v4.1.1","source":"security-advisories@github.com"},{"url":"https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-jj3q-cwqj-842r","source":"security-advisories@github.com"},{"url":"https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-jj3q-cwqj-842r","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}]}