CVE-2025-54314

Severity: low (CVSS 2.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-07-20 · updated 2026-06-17
Weakness: CWE-78

Description

Thor before 1.4.0 can construct an unsafe shell command from library input. NOTE: this is disputed by the Supplier because "the method that was fixed can only be used with arguments that are controlled by Thor, and there is no way an attacker can take control of those arguments."

Affected products

rubyonrails Thor: before 1.4.0 — fixed in 1.4.0

How to fix

Upgrade to a fixed version: rubyonrails Thor 1.4.0. Check the vendor advisory for mitigations.

References

https://github.com/github/advisory-database/pull/5912#issuecomment-3169255309
https://github.com/rails/thor/commit/536b79036a0efb765c1899233412e7b1ca94abfa
https://github.com/rails/thor/pull/897
https://github.com/rails/thor/releases/tag/v1.4.0
https://hackerone.com/reports/3260153

Get alerted when CVE-2025-54314 or the next vulnerability affects your stack