A flaw was found in the cert-manager package. This flaw allows an attacker who can modify PEM data that the cert-manager reads, for example, in a Secret resource, to use large amounts of CPU in the cert-manager controller pod to effectively create a denial-of-service (DoS) vector for the cert-manager in the cluster.
https://github.com/cert-manager/cert-manager/security/advisories/GHSA-r4pg-vg54-wxx4
https://github.com/cert-manager/cert-manager/pull/7403
https://github.com/cert-manager/cert-manager/pull/7402
https://github.com/cert-manager/cert-manager/pull/7401
https://github.com/cert-manager/cert-manager/pull/7400
Published: 2024-12-12
Updated: 2026-06-26
Named Vulnerability: GO-2024-3282Named Vulnerability: GHSA-r4pg-vg54-wxx4Named Vulnerability: GHSA-ghw8-3xqw-hhcj
Base Score: 4.6
Vector: CVSS2#AV:N/AC:H/Au:M/C:N/I:N/A:C
Severity: Medium
Base Score: 4.4
Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
Severity: Medium
EPSS: 0.00673