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VulnerabilityPublished Updated

CVE-2026-12112: Red Hat Satellite 6.18 · Improper Authentication

Affects Red Hat Satellite 6.18Source CVE Database V5

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Not known to be exploited · CVSS 7.8 High.

Data as of 5 Nov 2026, 00:01 UTC

CVSS 3.1 base score
7.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 12% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 23 Jun 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 5 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Red HatRed Hat Satellite 6.18Affected–Fixed in–
Red HatRed Hat Satellite 6.19Affected–Fixed in–

AI-suggested

Users should monitor Red Hat's security advisories for updates. The vendor provides a Technology Preview container image for the MCP server but does not indicate it as a fix. Until a patch is released, consider restricting access to the MCP server and limiting exposure of session logs to reduce risk.

Description

CVE-2026-12112 is a session management vulnerability in the foreman-mcp-server component of Red Hat Satellite 6.18. It allows unauthenticated attackers to hijack active administrative sessions due to improper caching of authenticated client connections and trusting non-secret session IDs without re-validating authentication tokens. Additionally, session IDs are logged to standard logs, increasing exposure risk. This flaw can lead to privilege escalation and infrastructure-wide code execution. No official patch or fix has been published yet, and the vendor advisory indicates no current fixes are available. The vulnerability has a high severity with a CVSS score of 7.8.

References

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