CVE-2026-5136
Foreman: foreman: privilege escalation to administrator-level access via usergroup role assignment manipulation
- 8.8HighCVSS base score
- 0.56%Exploitation in 30 daysEPSS · top 53% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
A flaw was found in Foreman. The Usergroup model in Foreman does not properly validate role assignments against the calling user's permissions. This allows an authenticated user with usergroup management permissions to attach arbitrary roles, including administrative roles, to a user group and then add themselves as a member. Successful exploitation of this vulnerability leads to full privilege escalation, granting the attacker administrator-level access.
Timeline
ID reserved
By redhat
- 3 months later
· 3 months later
Published
- 1 day later
· 1 day later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| redhatCNA (assigner) | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Analyzed | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.56% · top 53% of all CVEs (11 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Affected products
Red Hat · Red Hat Satellite 6.16 for RHEL 8
- unaffected 0:3.12.0.17-1.el8sat – < *
Red Hat · Red Hat Satellite 6.16 for RHEL 9
- unaffected 0:3.12.0.17-1.el9sat – < *
Red Hat · Red Hat Satellite 6.17 for RHEL 9
- unaffected 0:3.14.0.17-1.el9sat – < *
Red Hat · Red Hat Satellite 6.18 for RHEL 9
- unaffected 0:3.16.0.17-1.el9sat – < *
Red Hat · Red Hat Satellite 6.19 for RHEL 9
- unaffected 0:3.18.0.7-1.el9sat – < *
All versions: affected
References
References6
- RHSA-2026:34365 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2026:34366 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2026:34367 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2026:34368 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2026-5136 (opens in a new tab)vdb-entryx_refsource_REDHAT
- RHBZ#2452970 (opens in a new tab)issue-trackingx_refsource_REDHAT
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-40959 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-5136)Record last updated .