CVEvulnerability

CVE-2026-62290

7.3 HIGH Published 2026-07-16 Modified 2026-07-30 Official page ↗
Status
Analyzed
Published
2026-07-16
Last modified
2026-07-30
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.3 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
Weaknesses
CWE-863

Description

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 acme.cert-manager.io can be created directly by namespace users without admission validation tying the Challenge to an Order, owner reference, or Issuer-selected solver, allowing attacker-controlled Challenge.spec.solver values referencing a ClusterIssuer to bypass DNS01 solver selectors such as dnsZones, dnsNames, and matchLabels and cause cert-manager to use ClusterIssuer DNS credentials for attacker-selected provider settings and DNS names, including disclosure of X-Api-User and X-Api-Key headers for acme-dns. This issue is fixed in versions 1.19.6 and 1.20.3.

Affected configurations

• linuxfoundation cert-manager (>= 1.18.0 < 1.19.6) • linuxfoundation cert-manager (>= 1.20.0 < 1.20.3)

Related

Weakness · CWE (1)

  • CWE-863 Incorrect Authorization weakness

References