CVE-2026-5136: Red Hat Satellite 6.16 for RHEL 8 · Incorrect Privilege Assignment
Affects Red Hat Satellite 6.16 for RHEL 8Source CVE Database V5
Not known to be exploited · CVSS 8.8 High.
Data as of 12 Nov 2026, 23:24 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 46% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 1 Jul 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Red HatRed Hat Satellite 6.16 for RHEL 8 | Affected– | Fixed in– |
| Red HatRed Hat Satellite 6.16 for RHEL 9 | Affected– | Fixed in– |
| Red HatRed Hat Satellite 6.17 for RHEL 9 | Affected– | Fixed in– |
| Red HatRed Hat Satellite 6.18 for RHEL 9 | Affected– | Fixed in– |
| Red HatRed Hat Satellite 6.19 for RHEL 9 | Affected– | Fixed in– |
| Red HatRed Hat Satellite 6 | Affected– | Fixed in– |
AI-suggested
Until an official fix is available, restrict usergroup management permissions to trusted users only to reduce risk.
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.
References
- access.redhat.com/errata/RHSA-2026:34365 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:34366 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:34367 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:34368 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-5136 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2452970 (opens in a new tab)