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CVE-2026-12545

MEDIUMCVSS 6.7/10EPSS 0.51%

Last modified

CVE-2026-12545 is a medium-severity vulnerability rated 6.7/10 on the CVSS scale. 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. EPSS estimates a 0.51% chance of exploitation in the next 30 days.

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., ;, |, &).

Metrics

CVSS 3.1
6.7/10

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

EPSS Probability
0.51%

41.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
Red HatRed Hat Satellite 6.16 for RHEL 8All versions
Red HatRed Hat Satellite 6.16 for RHEL 9All versions
Red HatRed Hat Satellite 6.17 for RHEL 9All versions
Red HatRed Hat Satellite 6.18 for RHEL 9All versions
Red HatRed Hat Satellite 6.19 for RHEL 9All versions
Red HatRed Hat Satellite 6All versions

References

Timeline

Published
Last Modified
Status
Awaiting Analysis

Frequently Asked Questions

What is 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., ;, |, &).
How severe is CVE-2026-12545?
CVE-2026-12545 has a CVSS score of 6.7/10 (MEDIUM severity). The EPSS model estimates a 0.51% probability of exploitation in the next 30 days.
How do I fix CVE-2026-12545?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST