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VulnerabilityPublished

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

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Not known to be exploited · CVSS 8.8 High.

Data as of 12 Nov 2026, 23:24 UTC

CVSS 3.1 base score
8.8High
How severe the flaw is on the 0–10 CVSS scale.
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:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 1 Jul 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

ProductAffectedFixed in
Red HatRed Hat Satellite 6.16 for RHEL 8Affected–Fixed in–
Red HatRed Hat Satellite 6.16 for RHEL 9Affected–Fixed in–
Red HatRed Hat Satellite 6.17 for RHEL 9Affected–Fixed in–
Red HatRed Hat Satellite 6.18 for RHEL 9Affected–Fixed in–
Red HatRed Hat Satellite 6.19 for RHEL 9Affected–Fixed in–
Red HatRed Hat Satellite 6Affected–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

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