What’s Vulnerable › Vulnerabilities

CVE-2026-44231: RT: Privilege escalation and information disclosure via REST 2.0 user collection endpoint

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-20 · updated 2026-10-24
• Weakness: CWE-200

Description

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.

Affected products

• Best Practical Request Tracker: before 5.0.10; from 6.0.0 before 6.0.3 — fixed in 5.0.10, 6.0.3

How to fix

Upgrade to a fixed version: Best Practical Request Tracker 5.0.10, 6.0.3. Check the vendor advisory for mitigations.

References

• https://github.com/bestpractical/rt/releases/tag/rt-6.0.3
• https://github.com/bestpractical/rt/security/advisories/GHSA-7rx2-x357-wv74

Get alerted when CVE-2026-44231 or the next vulnerability affects your stack