CVE-2026-12545
Rubygem-hammer_cli: command injection via insecure editor invocation
CVSS Score
6.7
EPSS Score
0.5%
EPSS Percentile
41th
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., ;, |, &).
| CWE | CWE-78 |
| Vendor | red hat |
| Product | red hat satellite 6.16 for rhel 8 |
| Published | Oct 1, 2026 |
| Last Updated | Oct 7, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Red Hat / Red Hat Satellite 6.16 for RHEL 8
All versions affected Red Hat / Red Hat Satellite 6.16 for RHEL 9
All versions affected Red Hat / Red Hat Satellite 6.17 for RHEL 9
All versions affected Red Hat / Red Hat Satellite 6.18 for RHEL 9
All versions affected Red Hat / Red Hat Satellite 6.19 for RHEL 9
All versions affected Red Hat / Red Hat Satellite 6
All versions affected References
access.redhat.com: https://access.redhat.com/errata/RHSA-2026:74503 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:74504 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:74505 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:74506 access.redhat.com: https://access.redhat.com/security/cve/CVE-2026-12545 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2489993 openwall.com: http://www.openwall.com/lists/oss-security/2026/10/07/5
Credits
This issue was discovered by Laura Pardo (Red Hat) and Toni Gornals (Red Hat).