CVE-2026-12545
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.
Does this matter?
Lower severity and a low EPSS score (0.52%). Track it; it rarely justifies an emergency change on its own.
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., ;, |, &).
- CVSS 3.1
- 6.7 MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 0.52% probability · 44th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-78
- Source
- secalert@redhat.com
EPSS moved from 0.5% on 2 October 2026 to 0.5% on 26 October 2026.
References
- https://access.redhat.com/errata/RHSA-2026:74503
- https://access.redhat.com/errata/RHSA-2026:74504
- https://access.redhat.com/errata/RHSA-2026:74505
- https://access.redhat.com/errata/RHSA-2026:74506
- https://access.redhat.com/security/cve/CVE-2026-12545
- https://bugzilla.redhat.com/show_bug.cgi?id=2489993
- http://www.openwall.com/lists/oss-security/2026/10/07/5
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.