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., ;, |, &).
References7
- access.redhat.com/errata/RHSA-2026:74503
- access.redhat.com/errata/RHSA-2026:74504
- access.redhat.com/errata/RHSA-2026:74505
- access.redhat.com/errata/RHSA-2026:74506
- access.redhat.com/security/cve/CVE-2026-12545
- bugzilla.redhat.com/show_bug.cgi?id=2489993
- www.openwall.com/lists/oss-security/2026/10/07/5
Metrics
- CVSS 3.1
-
6.7
MEDIUM
Score source: CNA
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 1% percentile: 45 · as of 10 November 2026
- CWE
- CWE-78
Could this be exploited in your environment?
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