SB20261007233 - External Control of File Name or Path in TeamCity
Published: October 7, 2026
Security Bulletin ID
SB20261007233
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) External Control of File Name or Path (CVE-ID: CVE-2026-106219)
CWE-ID: CWE-73 - External Control of File Name or Path
CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to read local repositories on the server.
The vulnerability exists due to missing validation of Git submodule URLs in TeamCity's Git submodule URL handling when processing submodule URLs. A remote attacker can supply a crafted Git submodule URL to read local repositories on the server.
Remediation
Install update from vendor's website.