CVE-2026-12545

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 v3 6.7 MEDIUM

6.7^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
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

Configurations

No configuration.

History

07 Oct 2026, 07:17

Type	Values Removed	Values Added
References		() http://www.openwall.com/lists/oss-security/2026/10/07/5 -

02 Oct 2026, 18:17

Type	Values Removed	Values Added
References		() https://access.redhat.com/errata/RHSA-2026:74505 -

02 Oct 2026, 00:17

Type	Values Removed	Values Added
References		() https://access.redhat.com/errata/RHSA-2026:74504 - () https://access.redhat.com/errata/RHSA-2026:74506 -

01 Oct 2026, 18:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-01 18:17

Updated : 2026-10-07 07:17

NVD link : CVE-2026-12545

Mitre link : CVE-2026-12545

CVE.ORG link : CVE-2026-12545

JSON object : View

Products Affected

No product.

CWE

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

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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., ;, |, &)."}], "lastModified": "2026-10-07T07:17:00.897", "sourceIdentifier": "secalert@redhat.com"}