CVE-2026-109965

Serena before 2.0.0 Symlink Following in File Tools Allows Access Outside Project Root

Published Oct 13, 2026 CVSS 4.0 · 8.4 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Oraios
Oraios serena
Vendors & Products Oraios
Oraios serena
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Serena before 2.0.0 Symlink Following in File Tools Allows Access Outside Project Root
First Time appeared Oraios-ai
Oraios-ai serena
Weaknesses CWE-59
CPEs cpe:2.3:a:oraios-ai:serena:*:*:*:*:*:*:*:*
Vendors & Products Oraios-ai
Oraios-ai serena
References
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N'}

cvssV4_0

{'score': 8.4, '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Oct 13, 2026, 3:29 PM
Reserved
Oct 13, 2026, 11:26 AM
Status
Deferred
Published
Oct 13, 2026, 2:17 PM
Modified
Oct 16, 2026, 7:18 PM