{"id":"CVE-2026-33686","aliases":["GHSA-9ffq-6457-8958"],"url":"https://o3.security/vulnerability/CVE-2026-33686","summary":"Sharp is Vulnerable to Path Traversal via Unsanitized Extension in FileUtil","details":"Sharp is a content management framework built for Laravel as a package. Versions prior to 9.20.0 have a path traversal vulnerability  in the FileUtil class. The application fails to sanitize file extensions properly, allowing path separators to be passed into the storage layer. In `src/Utils/FileUtil.php`, the `FileUtil::explodeExtension()` function extracts a file's extension by splitting the filename at the last dot. This issue has been patched in version 9.20.0 by properly sanitizing the extension using `pathinfo(PATHINFO_EXTENSION)` instead of `strrpos()`, alongside applying strict regex replacements to both the base name and the extension.","published":"2026-03-26T21:54:25.294Z","modified":"2026-08-07T11:31:14.258920088Z","cvss":{"score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"code16/sharp","fixedVersion":"9.20.0"}],"fix":{"url":"https://github.com/code16/sharp/pull/715","label":"code16/sharp#715"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33686.json"},{"type":"ADVISORY","url":"https://github.com/code16/sharp/security/advisories/GHSA-9ffq-6457-8958"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33686"},{"type":"FIX","url":"https://github.com/code16/sharp/pull/715"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T11:31:14.258920088Z"}}