Information Disclosure and Privilege Escalation in RT Issue Tracking System by Best Practical
CVE-2026-44231

9.1CRITICAL

Key Information:

Vendor

Bestpractical

Status
Rt
Vendor
CVE Published:
20 July 2026

What is CVE-2026-44231?

The RT issue tracking system has a vulnerability within its REST 2.0 API that allows privileged (non-administrative) users to access authentication credentials of other users, including those with administrative rights. This flaw enables unauthorized access to sensitive information by leveraging the exposed credentials through RT's feed endpoints. Furthermore, the request that reveals these credentials also rotates them, resulting in the invalidation of existing feed URLs across the instance. This issue has been rectified in versions 5.0.10 and 6.0.3.

Affected Version(s)

rt < 5.0.10 < 5.0.10

rt >= 6.0.0, < 6.0.3 < 6.0.0, 6.0.3

References

https://github.com/bestpractical/rt/security/advisories/G...
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https://github.com/bestpractical/rt/releases/tag/rt-6.0.3
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CVSS V3.1

Score:
9.1
Severity:
CRITICAL
Confidentiality:
High
Integrity:
Low
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.