Auth bypass in Cert-manager

CVE-2026-62290

cert-manager adds certificates and certificate issuers as resource types in Kubernetes clusters, and simplifies the process of obtaining, renewing and using those certificates. From 1.18.0 until 1.19.6 and 1.20.3, Challenge resources under…

Vulnerability class: Broken Access Control

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N.

Affected products

  • Cert-manager — versions >= 1.18.0, < 1.19.6, >= 1.20.0, < 1.20.3

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-62290?
CVE-2026-62290 is a high-severity vulnerability in Cert-manager, classified under Incorrect Authorization. CVSS score: 7.3/10. Published 2026-07-16.
How severe is CVE-2026-62290?
High severity. CVSS v3 base score is 7.3 out of 10.