{"id":"CVE-2026-109965","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-109965","generatedAt":"2026-10-28T09:27:26.586Z","title":"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.","description":"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.","published":"2026-10-13T14:17:36.000Z","lastModified":"2026-10-16T19:18:45.000Z","status":"Deferred","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":8.4,"severity":"HIGH","vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-59"],"affected":[],"epss":{"score":0.00223,"percentile":0.12852,"date":"2026-10-27","history":[{"date":"2026-10-14","score":0.00223,"percentile":0.11987}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.22%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-13T14:17:36.000Z","detail":{"score":"8.4","severity":"HIGH","publishedAt":"2026-10-13T14:17:36.060Z"},"summary":"New CVE, high severity (CVSS 8.4)."}],"references":[{"url":"https://github.com/oraios/serena","source":"disclosure@vulncheck.com"},{"url":"https://github.com/oraios/serena/blob/v1.7.0/src/serena/project.py","source":"disclosure@vulncheck.com"},{"url":"https://github.com/oraios/serena/commit/6f20f9b822d85bb063008e786f808d04619dd54e","source":"disclosure@vulncheck.com"},{"url":"https://github.com/oraios/serena/issues/2144","source":"disclosure@vulncheck.com"},{"url":"https://github.com/oraios/serena/releases/tag/v2.0.0","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/serena-before-2.0.0-symlink-following-in-file-tools-allows-access-outside-project-root","source":"disclosure@vulncheck.com"},{"url":"https://github.com/oraios/serena/issues/2144","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-109965","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."}