{"id":"CVE-2026-52491","title":"An issue in libtiff 85f2ac8e0b01cb7db2bbecf4a3b891bdbef67938 allows an attacker to execute arbitrary code via the libtiff/tools/thumbnail.c: main() component","summary":"An issue in libtiff 85f2ac8e0b01cb7db2bbecf4a3b891bdbef67938 allows an attacker to execute arbitrary code via the libtiff/tools/thumbnail.c: main() component","severity":"high","cvss":8.4,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-190","CWE-120"],"published":"2026-08-25","updated":"2026-09-09","sourceUpdated":"2026-09-09T16:03:22.897","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-52491","references":[{"url":"https://gist.github.com/okyfh/5cc53fa67d229017231cf18c91768bd9","label":"cve@mitre.org"},{"url":"https://gitlab.com/libtiff/libtiff/-/commit/9ce4d089bcf25496663776d9e6336738112f09a3","label":"cve@mitre.org"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52491.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-52491"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2524131"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-52491"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-52491"},{"url":"https://access.redhat.com/errata/RHSA-2026:53467"}],"tags":["nvd","csaf","vex","red-hat"],"epss":0.0014,"epssPercentile":0.03753,"ingestedAt":"2026-09-09T16:14:05.515Z","vendor":"Red Hat","product":"Red Hat Enterprise Linux 7","affected":["enterprise_linux 6","enterprise_linux 7","hardened_images"],"patched":["hardened_images"],"scores":{"nvd":8.4,"vendor":7.3},"slug":"CVE-2026-52491","body":"## Overview\n\nAn issue in libtiff 85f2ac8e0b01cb7db2bbecf4a3b891bdbef67938 allows an attacker to execute arbitrary code via the libtiff/tools/thumbnail.c: main() component\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **RHSA-2026:53467** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-08-11 · [advisory](https://access.redhat.com/errata/RHSA-2026:53467)\n- **Red Hat VEX** · Important · affected: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7 · updated 2026-09-21 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52491.json)","depth":"twilight","depthScore":46,"depthScoreParts":{"impact":46.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}