{"id":"CVE-2026-106115","title":"ImageSharp is a 2D graphics library","summary":"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-bloc…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-787"],"vendor":"SixLabors","product":"ImageSharp","affected":["ImageSharp >= 2.1.0, < 4.1.2"],"patched":["SixLabors.ImageSharp 4.1.2"],"published":"2026-10-06","updated":"2026-10-09","sourceUpdated":"2026-10-09T02:16:57.590","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-106115","references":[{"url":"https://github.com/SixLabors/ImageSharp/commit/a9498c6db3642ef92c712ebc81e706914ac16a95","label":"security-advisories@github.com"},{"url":"https://github.com/SixLabors/ImageSharp/pull/3187","label":"security-advisories@github.com"},{"url":"https://github.com/SixLabors/ImageSharp/releases/tag/v4.1.2","label":"security-advisories@github.com"},{"url":"https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-jjfr-hcj7-qf5w","label":"security-advisories@github.com"},{"url":"https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-jjfr-hcj7-qf5w","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-106115"},{"url":"https://github.com/advisories/GHSA-jjfr-hcj7-qf5w"},{"url":"https://github.com/SixLabors/ImageSharp/pull/3208"},{"url":"https://github.com/SixLabors/ImageSharp/commit/baa37cd19077b2a2a0c5667535111cf31d48c019"},{"url":"https://github.com/SixLabors/ImageSharp/releases/tag/v3.2.0"}],"tags":["nvd","cve.org","ghsa","nuget","exploit-available"],"epss":0.00385,"epssPercentile":0.32424,"aliases":["GHSA-jjfr-hcj7-qf5w"],"ecosystem":"nuget","ingestedAt":"2026-10-06T18:11:36.227Z","exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"partial","timestamp":"2026-10-09T01:20:30.658521Z"},"slug":"CVE-2026-106115","body":"## Overview\n\nImageSharp 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-106115)\n\nAffected packages:\n\n- `SixLabors.ImageSharp >= 2.1.0, <= 4.1.1`\n\nPatched in:\n\n- `SixLabors.ImageSharp 4.1.2`\n\nSource: https://github.com/advisories/GHSA-jjfr-hcj7-qf5w","depth":"midnight","depthScore":53,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":220552,"id":"CVE-2026-106115","ts":1792022787549,"field":"exploit_available","old":"false","new":"true"}]}