CVE-2025-64482 Overview
CVE-2025-64482 is a Cross-Site Request Forgery (CSRF) vulnerability [CWE-352] in Tuleap, an open source suite for software development management and collaboration. The flaw affects the file release system in Tuleap Community Edition prior to version 16.13.99.1762267347 and Tuleap Enterprise Edition prior to versions 17.01-, 16.13-6, and 16.12-9. The file release system lacks CSRF protections, allowing attackers to trick authenticated victims into submitting unintended state-changing requests. Successful exploitation modifies commit rules or immutable tags of a Subversion (SVN) repository without the user's consent.
Critical Impact
An attacker can manipulate SVN repository commit rules and immutable tag configurations by tricking an authenticated Tuleap user into visiting an attacker-controlled page, undermining source code integrity controls.
Affected Products
- Tuleap Community Edition prior to 16.13.99.1762267347
- Tuleap Enterprise Edition prior to 17.01-, 16.13-6, and 16.12-9
- Tuleap file release system component (SVN repository configuration)
Discovery Timeline
- 2025-11-12 - CVE-2025-64482 published to the National Vulnerability Database (NVD)
- 2026-10-18 - Last updated in NVD database
Technical Details for CVE-2025-64482
Vulnerability Analysis
The vulnerability resides in Tuleap's file release system, where sensitive state-changing operations against Subversion repositories are not protected by anti-CSRF tokens. When an authenticated Tuleap user visits a malicious page while a valid session cookie is active, the attacker-controlled page can submit forged requests to the Tuleap backend. The backend accepts the request as legitimate because no server-side token validation occurs on the vulnerable endpoints.
The affected operations include modifying SVN commit rules and immutable tags. Commit rules enforce repository policy, while immutable tags prevent historical rewrites. Both control integrity guarantees that developers and auditors depend on. Weakening these controls through CSRF can enable follow-on attacks against the software supply chain hosted in Tuleap.
Root Cause
The root cause is missing CSRF protection on endpoints in the file release system that mutate SVN repository configuration. The vulnerable code paths accepted authenticated requests without validating a per-session, unpredictable token, violating the standard defense documented in [CWE-352].
Attack Vector
Exploitation requires an authenticated Tuleap user to interact with attacker-controlled content, such as visiting a crafted web page or clicking a malicious link. The attack is executed over the network, requires low privileges on the attacker side, and depends on user interaction. The commit referenced in the Tuleap patch commit and the GitHub Security Advisory GHSA-w7h4-9vf6-q7rc describe the specific endpoints hardened by the fix.
Detection Methods for CVE-2025-64482
Indicators of Compromise
- Unexpected changes to SVN repository commit rules or immutable tag settings without a corresponding administrator action in audit logs.
- HTTP requests to Tuleap file release or SVN administration endpoints originating from external referrers or lacking expected form tokens.
- Modifications to repository configuration occurring during a user's browser session shortly after visiting an untrusted external site.
Detection Strategies
- Review Tuleap application and web server logs for POST requests to SVN configuration endpoints with suspicious Referer or Origin headers.
- Correlate configuration-change events in Tuleap with user browsing telemetry to identify changes triggered without direct administrator intent.
- Monitor version control audit trails for unexpected modifications to commit rules or tag immutability flags.
Monitoring Recommendations
- Enable verbose audit logging for all SVN repository administrative actions within Tuleap.
- Alert on configuration changes performed outside maintenance windows or by accounts that rarely administer repositories.
- Forward Tuleap application logs to a centralized SIEM to retain evidence and support post-incident investigation.
How to Mitigate CVE-2025-64482
Immediate Actions Required
- Upgrade Tuleap Community Edition to 16.13.99.1762267347 or later immediately.
- Upgrade Tuleap Enterprise Edition to 17.0-1, 16.13-6, or 16.12-9 depending on your release branch.
- Audit SVN repository commit rules and immutable tag settings for unauthorized modifications since the vulnerable version was deployed.
- Require administrators to log out and re-authenticate after the upgrade to invalidate any lingering sessions.
Patch Information
The vendor fixed the issue in Tuleap Community Edition 16.13.99.1762267347, Tuleap Enterprise Edition 17.0-1, Tuleap Enterprise Edition 16.13-6, and Tuleap Enterprise Edition 16.12-9. The remediation is implemented in commit 899b5c1693324211947b72f2810ae8944e1bd0d5 and documented in the GitHub Security Advisory GHSA-w7h4-9vf6-q7rc and the corresponding Tuleap Tracker ID 45259.
Workarounds
- Restrict access to the Tuleap web interface to trusted network segments or VPN until the patch is applied.
- Instruct administrators to use a dedicated browser or browser profile for Tuleap sessions to reduce cross-site exposure.
- Enforce short session lifetimes and require re-authentication for administrative actions on SVN repositories.
# Example: upgrade Tuleap Community Edition on RHEL/CentOS
sudo yum clean all
sudo yum update tuleap tuleap-plugin-svn
# Verify the installed version meets or exceeds the fixed release
rpm -q tuleap
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
