RCE in Rubyonrails Thor

CVE-2025-54314

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."

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.002 (5.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 2.8 (Low). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-54314?
CVE-2025-54314 is a low-severity vulnerability in Rubyonrails Thor, classified under OS Command Injection. CVSS score: 2.8/10. Published 2025-07-20.
How severe is CVE-2025-54314?
Low severity. CVSS v3 base score is 2.8 out of 10.