RT REST2.0 API Info Disclosure & PrivEsc in RT <5.0.10 / <6.0.3
CVE-2026-44231 Published on July 20, 2026
RT: Privilege escalation and information disclosure via REST 2.0 user collection endpoint
RT is an open source, enterprise-grade issue and ticket tracking system. Versions prior to 5.0.10, 6.0.0 and above, prior to 6.0.3 contain an information disclosure and privilege escalation vulnerability in the REST 2.0 API. A privileged (non-administrative) user can obtain authentication credentials belonging to other users including users with administrative privileges and use those credentials to read data as those users via RT's feed endpoints. The same request that exposes the credentials also rotates them, invalidating previously-distributed feed URLs across the instance. This issue has been fixed in versions 5.0.10 and 6.0.3.
Vulnerability Analysis
CVE-2026-44231 can be exploited with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality, with no impact on integrity and availability.
Weakness Types
What is an Information Disclosure Vulnerability?
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
CVE-2026-44231 has been classified to as an Information Disclosure vulnerability or weakness.
Improper Privilege Management
The software does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.
What is an AuthZ Vulnerability?
The software performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.
CVE-2026-44231 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2026-44231
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Affected Versions
bestpractical rt:- Version < 5.0.10 is affected.
- Version >= 6.0.0, < 6.0.3 is affected.