Vulnerability in Oraios Serena
CVE-2026-109965
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 · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/oraios/serena (product)
- github.com/oraios/serena/blob/v1.7.0/src/serena/project.py (technical-description)
- github.com/oraios/serena/commit/6f20f9b822d85bb063008e786f808d04619dd54e (patch)
- github.com/oraios/serena/issues/2144 (issue-tracking)
- github.com/oraios/serena/releases/tag/v2.0.0 (release-notes)
- www.vulncheck.com/advisories/serena-before-2.0.0-symlink-following-in-file-tool… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-109965?
- CVE-2026-109965 is a high-severity vulnerability in Oraios Serena, classified under Improper Link Resolution Before File Access. CVSS score: 7.1/10. Published 2026-10-13.
- How severe is CVE-2026-109965?
- High severity. CVSS v3 base score is 7.1 out of 10.