Read the docs
TI-2026-71732 Aliases CVE-2026-109965GHSA-f7x4-jgqg-5mc6

Symlink following in Serena file tools exposes files outside project root

Priority HIGH 72CWE-59Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

Serena before 2.0.0 contains an improper link resolution flaw (CWE-59) that lets attackers reach 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 such as read_file and create_text_file can read or overwrite files like SSH keys or cloud credentials. An attacker who can commit to a repository used with Serena can exploit this, and a user must interact with the project for the attack to proceed.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00223 13th percentileScored 2026-11-07
Fix Fixed serena (oraios): 2.0.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
oraiosserenabefore 2.0.02.0.0Patch availableCNA
  • serena Vendororaios Affected before 2.0.0 Fixed in 2.0.0 Patch available CNA

Remediation

Update Serena to version 2.0.0, which fixes the issue. Red Hat marks one product as not affected.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

  • Fix · CNA serena (oraios) Fixed in 2.0.0

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-13 Threatist record created from CVE-2026-109965
  2. 2026-10-13 Alias added: GHSA-f7x4-jgqg-5mc6
  3. 2026-11-06 Affected versions changed · Red Hat
  4. 2026-11-06 CVSS score added · Red Hat

References

Patch 1

Other 4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences