Red Hat CRI-O: format string

High7.8CVE-2026-15809 · Published Jul 15, 2026 · updated Sep 25, 2026

A flaw was found in CRI-O. The fix for a previous vulnerability (CVE-2022-4318) was incorrect, allowing it to be bypassed. An attacker capable of setting environment variables on a container can inject a newline character into the HOME environment variable. This issue allows the addition of arbitrary lines into /etc/passwd by use of a specially crafted environment variable.