CVE-2026-12545
A flaw was found in rubygem-hammer_cli
- Risk score
- 49/100
- CVSS
- 6.7 v3.1
- Exploit chance (30 days)
- 0.5%
- Published
- 1 Oct 2026
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What to know
- What it is
- 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(), …
- Affected
- See advisory
- Fix
- Apply the vendor's security update; see the linked advisory.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 6.7 medium
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
Original 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., ;, |, &).
Last activity 1 Oct 2026. Patch Forecast updates every hour.