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.

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/oraios/serena
https://github.com/oraios/serena/blob/v1.7.0/src/serena/project.py
https://github.com/oraios/serena/commit/6f20f9b822d85bb063008e786f808d04619dd54e
https://github.com/oraios/serena/issues/2144
https://github.com/oraios/serena/releases/tag/v2.0.0
https://www.vulncheck.com/advisories/serena-before-2.0.0-symlink-following-in-file-tools-allows-access-outside-project-root
https://github.com/oraios/serena/issues/2144

Configurations

No configuration.

History

13 Oct 2026, 16:17

Type	Values Removed	Values Added
References	~~() https://github.com/oraios/serena/issues/2144 -~~	() https://github.com/oraios/serena/issues/2144 -

13 Oct 2026, 14:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-13 14:17

Updated : 2026-10-16 19:18

NVD link : CVE-2026-109965

Mitre link : CVE-2026-109965

CVE.ORG link : CVE-2026-109965

JSON object : View

Products Affected

No product.

CWE

CWE-59

Improper Link Resolution Before File Access ('Link Following')

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