{"id":"CVE-2026-106116","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-106116","generatedAt":"2026-10-28T03:26:01.351Z","title":"When fewer than 20 bytes remain, ExifReader.ReadValue64 returns without advancing the stream or terminating the outer loop, so a small malformed BigTIFF can keep one decoder thread executing for an attacker-controlled duration.","description":"ImageSharp is a 2D graphics library. From 2.0.0 until 4.1.2, ExifReader.ReadValues64 trusts the 64-bit BigTIFF IFD entry count and iterates once per declared entry. When fewer than 20 bytes remain, ExifReader.ReadValue64 returns without advancing the stream or terminating the outer loop, so a small malformed BigTIFF can keep one decoder thread executing for an attacker-controlled duration. This report does not claim worker-pool exhaustion. This issue is fixed in version 4.1.2.","published":"2026-10-06T18:16:53.000Z","lastModified":"2026-10-24T01:24:28.000Z","status":"Analyzed","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},"cwe":["CWE-835"],"affected":["sixlabors/imagesharp"],"epss":{"score":0.00328,"percentile":0.25759,"date":"2026-10-26","history":[{"date":"2026-10-07","score":0.00366,"percentile":0.28336}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.33%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-06T18:16:53.000Z","detail":{"score":"5.3","severity":"MEDIUM","publishedAt":"2026-10-06T18:16:53.400Z"},"summary":"New CVE, medium severity (CVSS 5.3)."}],"references":[{"url":"https://github.com/SixLabors/ImageSharp/commit/92b12d72550ebb6be5b1e22e559c361fd863a6ec","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/SixLabors/ImageSharp/pull/3187","tags":["Issue Tracking","Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/SixLabors/ImageSharp/releases/tag/v4.1.2","tags":["Release Notes"],"source":"security-advisories@github.com"},{"url":"https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-wmxv-xphr-5c9g","tags":["Exploit","Vendor Advisory"],"source":"security-advisories@github.com"},{"url":"https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-wmxv-xphr-5c9g","tags":["Exploit","Vendor Advisory"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-106116","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}