{"id":"CVE-2025-4437","aliases":["GO-2025-3897"],"url":"https://o3.security/vulnerability/CVE-2025-4437","summary":"CRI-O has Potential High Memory Consumption from File Read","details":"There's a vulnerability in the CRI-O application where when container is launched with securityContext.runAsUser specifying a non-existent user, CRI-O attempts to create the user, reading the container's entire /etc/passwd file into memory. If this file is excessively large, it can cause the a high memory consumption leading applications to be killed due to out-of-memory. As a result a denial-of-service can be achieved, possibly disrupting other pods and services running in the same host.","published":"2025-08-20T15:31:41Z","modified":"2025-08-29T20:38:22Z","cvss":{"score":5.7,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/cri-o/cri-o","fixedVersion":null}],"fix":null,"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-4437"},{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2025-4437"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2375084"},{"type":"PACKAGE","url":"https://github.com/cri-o/cri-o"},{"type":"WEB","url":"https://pkg.go.dev/vuln/GO-2025-3897"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2025-08-29T20:38:22Z"}}