CVE-2026-109965 | BDVDB-2026-388690 Detail
oraiosserena
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.
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact none. Attack vector: local.
Weaknesses#
- CWE-59 Improper Link Resolution Before File Access ('Link Following')
References#
- https://github.com/oraios/serena/issues/2144
- https://github.com/oraios/serena/commit/6f20f9b822d85bb063008e786f808d04619dd54e
- https://github.com/oraios/serena/releases/tag/v2.0.0
- https://github.com/oraios/serena/blob/v1.7.0/src/serena/project.py
- https://github.com/oraios/serena
- https://www.vulncheck.com/advisories/serena-before-2.0.0-symlink-following-in-file-tools-allows-access-outside-project-root
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.