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CVE-2026-5135VulnerabilityPublished

Red Hat Security Advisory: Satellite 6.16.10 Async Update

Affects Red HatSource GCVE Database

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Mentioned vulnerabilities

Authoritative record:CVE-2026-5135· Medium 6.5

Not known to be exploited · CVSS 6.5 Medium.

Data as of 14 Nov 2026, 20:44 UTC

CVSS 3.1 base score
6.5Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 37% 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:N/I:H/A:N

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 14 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

Red Hat has released an update for Red Hat Satellite 6.16.10 for RHEL 8 and 9 that addresses these vulnerabilities. Users should apply this update after ensuring all previously released errata relevant to their systems are installed. Detailed update instructions are available from Red Hat's official documentation. No indication of alternative mitigations or workarounds is provided, so applying the official update is the recommended remediation.

Description

Red Hat Satellite 6.16.10 for RHEL 8 and 9 addresses multiple security vulnerabilities including privilege escalation, information disclosure, unauthorized modification of host configurations, and cross-tenant private SSH key disclosure. These issues stem from broken access controls, improper validation of nested request parameters, and taxonomy scoping bypasses in Foreman components. The update is rated as Important by Red Hat Product Security and fixes these vulnerabilities to prevent unauthorized administrative access and data leaks.

References

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