CVE-2026-12545 MEDIUM

CVE-2026-12545: Rubygem-hammer_cli: command injection via insecure editor invocation

Vendor Red Hat

Product Red Hat Satellite 6

Weakness CWE-78

Published October 1, 2026

Last update October 1, 2026

View on NVD All CVEs

CVSS base score

6.7/10

Attack vector Local

Attack complexity High

Privileges required Low

User interaction Required

Confidentiality High

Integrity High

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

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., ;, |, &).

Key dates

02Disclosure timeline

October 1, 2026 CVE published

October 1, 2026 Record updated

External resources

03References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-12545 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/78.html AskarLabs — CWE-78 write-up OS Command Injection

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