CVE-2025-52899 in Tuleap Community Edition
Summary
by MITRE • 07/29/2025
Tuleap is an Open Source Suite created to facilitate management of software development and collaboration. In Tuleap Community Edition prior to version 16.9.99.1750843170 and Tuleap Enterprise Edition prior to 16.8-4 and 16.9-2, the forgot password form allows for user enumeration. This is fixed in Tuleap Community Edition version 16.9.99.1750843170 and Tuleap Enterprise Edition 16.8-4 and 16.9-2.
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Analysis
by VulDB Data Team • 08/23/2025
The vulnerability identified as CVE-2025-52899 affects Tuleap, an open-source software development management suite that facilitates collaborative development environments. This issue resides in the forgot password functionality of both Community and Enterprise editions, creating a user enumeration weakness that could be exploited by malicious actors to identify valid user accounts within the system. The vulnerability impacts versions prior to 16.9.99.1750843170 for Community Edition and versions 16.8-4 and 16.9-2 for Enterprise Edition, representing a critical security gap in the authentication system's design.
The technical flaw manifests through the password reset form's response behavior when processing user input. When a user enters an email address that does not correspond to an existing account, the system's response differs from when a valid account is entered, creating distinguishable patterns that an attacker can leverage to determine which email addresses are registered within the Tuleap environment. This user enumeration capability directly violates security best practices by providing attackers with information about valid user accounts without requiring authentication, enabling targeted attacks such as credential stuffing or brute force attempts against specific accounts. The vulnerability maps to CWE-204, which specifically addresses information exposure through response differences, and aligns with ATT&CK technique T1589.001 for credential access through reconnaissance of exposed credentials.
The operational impact of this vulnerability extends beyond simple information disclosure, as it significantly weakens the overall security posture of Tuleap installations. Attackers can systematically test email addresses against the forgot password form to compile lists of valid users, which then enables more sophisticated attacks including social engineering campaigns, targeted phishing attempts, and focused credential harvesting. The vulnerability particularly affects organizations that rely on Tuleap for project management and collaboration, as compromised user accounts could lead to unauthorized access to sensitive development data, source code repositories, and project documentation. Organizations using older versions of Tuleap may find their user directories exposed to enumeration attacks, potentially leading to privilege escalation or data breaches. The fix implemented in the updated versions ensures that the password reset form provides consistent responses regardless of whether the email address exists in the system, thereby eliminating the information leakage vector.
Mitigation strategies should prioritize immediate deployment of the patched versions, with version 16.9.99.1750843170 for Community Edition and 16.8-4 and 16.9-2 for Enterprise Edition being essential updates. Organizations should also implement additional security controls such as rate limiting on password reset requests to prevent automated enumeration attempts, consider implementing account lockout mechanisms after failed reset attempts, and conduct regular security assessments of authentication flows. Network-level protections including firewalls and intrusion detection systems can help monitor for suspicious patterns of password reset requests that may indicate enumeration attempts. Security teams should also review their incident response procedures to ensure proper handling of potential exploitation attempts and maintain awareness of the specific attack patterns associated with user enumeration vulnerabilities in authentication systems.