RCE in Red Hat Satellite 6
CVE-2026-12545
A flaw was found in rubygem-hammer_cli. A command injection vulnerability exists in Hammer CLI and the Railties (Ruby on Rails) component distributed with Satellite due to the insecure interpolation of the $EDITOR environment variable into the Ruby system() method. By passing a single interpolated string to system(), the application invokes a system shell (/bin/sh) that interprets shell metacharacters (e.g., ;, |, &).
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- access.redhat.com/errata/RHSA-2026:74503 (vendor-advisory)
- access.redhat.com/security/cve/CVE-2026-12545 (vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking)
- access.redhat.com/errata/RHSA-2026:74504 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:74506 (vendor-advisory)
Frequently asked questions
- What is CVE-2026-12545?
- CVE-2026-12545 is a medium-severity vulnerability in Red Hat Satellite 6, classified under OS Command Injection. CVSS score: 6.7/10. Published 2026-10-01.
- How severe is CVE-2026-12545?
- Medium severity. CVSS v3 base score is 6.7 out of 10.