All vulnerabilities
CVE-2026-12545

Red Hat Satellite 6.16 for RHEL 8: Rubygem-hammer_cli: command injection via insecure editor invocation

Red Hat Red Hat Satellite 6.16 for RHEL 8Operating systems
Open in ThreatlineRecord JSON
CVSS
6.7Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.51%Chance of exploitation activity in the next 30 days, higher than 42% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published1 Oct 2026Updated 7 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Description

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., ;, |, &).

Text from CVE List

Affected versions 5

  • Red Hat Satellite 6.16 for RHEL 8unaffected: 0:3.12.0-2.el8sat and laterCVE List
  • Red Hat Satellite 6.16 for RHEL 9unaffected: 0:3.12.0-2.el9sat and laterCVE List
  • Red Hat Satellite 6.17 for RHEL 9unaffected: 0:3.14.0-2.el9sat and laterCVE List
  • Red Hat Satellite 6.18 for RHEL 9unaffected: 0:3.16.0-2.el9sat and laterCVE List
  • Red Hat Satellite 6.19 for RHEL 9unaffected: 0:3.18.0-2.el9sat and laterCVE List

References 6