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Vulnerabilities CVE-2026-44231

CVE-2026-44231

Critical
Open
TLP:CLEAR

RT: Privilege escalation and information disclosure via REST 2.0 user collection endpoint

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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.

Details

CVSS Score
9.1
EPSS Score
0.25%

16.3th percentile

CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L
Confidence
90%
Published
Jul 20, 2026
Last Modified
Jul 20, 2026
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