CVE-2026-44231
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
9.1
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.
- Record
CVE-2026-44231- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L - Weakness
- CWE-200, CWE-269, CWE-863
- Updated
- 2026-11-02
EUVDEUVD-2026-46079
9.1
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.
- Record
EUVD-2026-46079- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L - Updated
- 2026-11-02
NVD
9.1
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.
- Record
CVE-2026-44231- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L - Weakness
- CWE-200, CWE-269, CWE-863
- Updated
- 2026-11-02
OSV
9.1
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.
- Record
CVE-2026-44231- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L - Weakness
- CWE-200, CWE-269, CWE-863
- Updated
- 2026-11-02
OSVDEBIAN-CVE-2026-44231
9.1
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.
- Record
DEBIAN-CVE-2026-44231- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L - Updated
- 2026-11-02
OSVUBUNTU-CVE-2026-44231
9.1
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.
- Record
UBUNTU-CVE-2026-44231- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
request-tracker4Debian:12 |
before 4.4.6+dfsg-1.1+deb12u4, plus listed versions 4.4.6+dfsg-1.14.4.6+dfsg-1.1+deb12u14.4.6+dfsg-1.1+deb12u24.4.6+dfsg-1.1+deb12u3 |
4.4.6+dfsg-1.1+deb12u4 |
request-tracker5Debian:12 |
before 5.0.3+dfsg-3~deb12u6, plus listed versions 5.0.3+dfsg-25.0.3+dfsg-3~deb12u15.0.3+dfsg-3~deb12u25.0.3+dfsg-3~deb12u35.0.3+dfsg-3~deb12u45.0.3+dfsg-3~deb12u5 |
5.0.3+dfsg-3~deb12u6 |
request-tracker5Debian:13 |
before 5.0.7+dfsg-4+deb13u3, plus listed versions 5.0.7+dfsg-45.0.7+dfsg-4+deb13u15.0.7+dfsg-4+deb13u2 |
5.0.7+dfsg-4+deb13u3 |
request-tracker5Debian:14 |
before 5.0.10+dfsg-1, plus listed versions 5.0.7+dfsg-45.0.7+dfsg-55.0.7+dfsg-65.0.9+dfsg-15.0.9+dfsg-25.0.9+dfsg-35.0.9+dfsg-4 |
5.0.10+dfsg-1 |
request-tracker4Ubuntu:16.04:LTS |
All versions, plus listed versions 4.2.11-24.2.12-34.2.12-44.2.12-5 |
None known |
request-tracker4Ubuntu:Pro:18.04:LTS |
All versions, plus listed versions 4.4.1-54.4.2-14.4.2-24.4.2-2ubuntu0.1~esm1 |
None known |
request-tracker4Ubuntu:20.04:LTS |
All versions, plus listed versions 4.4.3-24.4.3-2+deb10u3build0.20.04.1 |
None known |
request-tracker4Ubuntu:22.04:LTS |
All versions, plus listed versions 4.4.4+dfsg-2ubuntu14.4.4+dfsg-2ubuntu1.22.04.1 |
None known |
request-tracker5Ubuntu:Pro:22.04:LTS |
before 5.0.1+dfsg-1ubuntu1+esm2, plus listed versions 5.0.1+dfsg-1ubuntu15.0.1+dfsg-1ubuntu1+esm1 |
5.0.1+dfsg-1ubuntu1+esm2 |
request-tracker4Ubuntu:24.04:LTS |
All versions, plus listed versions 4.4.4+dfsg-2ubuntu14.4.4+dfsg-2ubuntu24.4.7+dfsg-1 |
None known |
Show 5 moreShow less
| Package | Affected | Fixed |
|---|---|---|
request-tracker5Ubuntu:Pro:24.04:LTS |
before 5.0.5+dfsg-2ubuntu0.1~esm2, plus listed versions 5.0.1+dfsg-1ubuntu15.0.5+dfsg-25.0.5+dfsg-2ubuntu0.1~esm1 |
5.0.5+dfsg-2ubuntu0.1~esm2 |
request-tracker4Ubuntu:25.10 |
All versions, plus listed versions 4.4.7+dfsg-4syncable1 |
None known |
request-tracker5Ubuntu:25.10 |
All versions, plus listed versions 5.0.7+dfsg-25.0.7+dfsg-35.0.7+dfsg-4 |
None known |
request-tracker4Ubuntu:26.04:LTS |
All versions, plus listed versions 4.4.7+dfsg-4syncable1 |
None known |
request-tracker5Ubuntu:Pro:26.04:LTS |
before 5.0.7+dfsg-6ubuntu0.1~esm1, plus listed versions 5.0.7+dfsg-45.0.7+dfsg-6 |
5.0.7+dfsg-6ubuntu0.1~esm1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-44231 is a critical vulnerability (CVSS 9.1) in Bestpractical Rt, published May 21, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.25%, the 16th percentile. Fixed in request-tracker4 4.4.6+dfsg-1.1+deb12u4.
References
github.com/bestpractical/rt/security/advisories/GHSA-7rx2-x357-wv74
github.com/bestpractical/rt/releases/tag/rt-6.0.3
github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44231.json
nvd.nist.gov/vuln/detail/CVE-2026-44231
security-tracker.debian.org/tracker/CVE-2026-44231
ubuntu.com/security/CVE-2026-44231
cve.org/CVERecord?id=CVE-2026-44231
github.com/bestpractical/rt/releases/tag/rt-5.0.10
ubuntu.com/security/notices/USN-8506-1