{"id":"CVE-2026-109965","summary":"Serena before 2.0.0 Symlink Following in File Tools Allows Access Outside Project Root","details":"Serena before 2.0.0 contains an improper link resolution vulnerability that allows attackers to access files outside the project root by committing symlinks inside a repository. Project.is_path_in_project() normalizes paths lexically without resolving symlinks, so file tools like read_file and create_text_file can read or overwrite files such as SSH keys or cloud credentials.","modified":"2026-10-15T02:47:31.947216441Z","published":"2026-10-13T14:00:17.324Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-59"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109965.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109965.json"},{"type":"ADVISORY","url":"https://github.com/oraios/serena/releases/tag/v2.0.0"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-109965"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/serena-before-2.0.0-symlink-following-in-file-tools-allows-access-outside-project-root"},{"type":"REPORT","url":"https://github.com/oraios/serena/issues/2144"},{"type":"FIX","url":"https://github.com/oraios/serena/commit/6f20f9b822d85bb063008e786f808d04619dd54e"},{"type":"PACKAGE","url":"https://github.com/oraios/serena"},{"type":"ARTICLE","url":"https://github.com/oraios/serena/blob/v1.7.0/src/serena/project.py"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/oraios/serena","events":[{"introduced":"0"},{"fixed":"4c4268f9c0adf8743a75e6dda2ef1fa635f34cc3"},{"fixed":"6f20f9b822d85bb063008e786f808d04619dd54e"}],"database_specific":{"source":["DESCRIPTION","REFERENCES"],"extracted_events":[{"introduced":"0"},{"fixed":"2.0.0"}]}}],"versions":["mit-final","v1.6.1","v1.5.3","v1.5.2","v1.5.1","v1.5.0","v1.2.0","v1.1.2","v1.1.1","v1.1.0","v1.0.0","v0.1.4","v0.1.3","v0.1.2","v0.1.1","v0.1.0","2025-06-20","2025-05-21","2025-05-19","2025-04-01"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-109965.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N"}]}