CVE-2026-12112: Red Hat Satellite 6.18 · Improper Authentication
Affects Red Hat Satellite 6.18Source CVE Database V5
Not known to be exploited · CVSS 7.8 High.
Data as of 5 Nov 2026, 00:01 UTC
- 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:HExploitation evidence
Disclosed: evidence found.
CVE published 23 Jun 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 5 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Red HatRed Hat Satellite 6.18 | Affected– | Fixed in– |
| Red HatRed Hat Satellite 6.19 | Affected– | 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
- access.redhat.com/errata/RHSA-2026:28405 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:28438 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-12112 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2488031 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-12112.json (opens in a new tab)