puma (rubygems) has 14 known vulnerabilities, the worst rated CRITICAL. Upgrade to 7.2.1 or later to clear all of them. No malicious-package signal is recorded.
Prior to version 6.3.1, puma exhibited incorrect behavior when parsing chunked transfer encoding bodies and zero-length Content-Length headers in a way that…
CyberXYZ does not call a package safe in absolute terms. It records 14 known vulnerabilities for puma (rubygems), the worst rated CRITICAL, and no malicious-package signal. Whether it is acceptable depends on the version you run.
Does puma have known vulnerabilities?
Yes. CyberXYZ records 14 known vulnerabilities for puma (rubygems), the worst rated CRITICAL. These include GHSA-68xg-gqqm-vgj8, GHSA-h99w-9q5r-gjq9, GHSA-2vqw-3mp8-cgmx, GHSA-qpgp-93vx-g8v8, GHSA-rmj8-8hhh-gv5h.
Which version of puma should I use?
7.2.1 or later clears every advisory recorded for puma (rubygems). Check the release you pick before installing it.
How do I check puma before installing?
Search puma in CyberXYZ Check at https://cyberxyz.io/check?q=puma. The xyz Scanner checks a project's dependencies, and CyberXYZ Proxy checks each package as it is installed.
Checked 2026-11-14 at 12:39 UTC. The most recent advisory here was published 2026-06-09. Updated continuously from NVD, GHSA, OSV and CNA feeds.