An issue in Puma v.5.0.0 and before v.8.0.3 allows an attacker to execute arbitrary code via the ext/puma_http11/http11_parser.rl file
https://github.com/czx1111/cve/issues/1
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-75664
Source: Mitre, NVD
Published: 2026-09-10
Updated: 2026-09-14
Base Score: 9.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:N
Severity: High
Base Score: 9.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Severity: Critical
EPSS: 0.00166