7.3

CVE-2026-62290

Exploit

cert-manager: Direct ACME Challenge resources can bypass Issuer DNS01 solver policy and use ClusterIssuer DNS credentials

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linuxfoundation ≫ Cert-manager Version >= 1.18.0 < 1.19.6
Linuxfoundation ≫ Cert-manager Version >= 1.20.0 < 1.20.3
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.1% 0.012
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 7.3 2 4.7
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
CWE-863 Incorrect Authorization

The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

https://github.com/cert-manager/cert-manager/security/advisories/GHSA-8rvj-mm4h-c258
Vendor Advisory
Exploit
Mitigation
https://github.com/cert-manager/cert-manager/pull/8940
Patch
Issue Tracking
https://github.com/cert-manager/cert-manager/pull/8941
Patch
Issue Tracking
https://github.com/cert-manager/cert-manager/commit/6bda47297c8fbc6b121b8b76624b668d26f1a155
Patch
https://github.com/cert-manager/cert-manager/commit/b37dbf01ecea50a0b3a19df0a7fe4c5ad6803f16
Patch
https://github.com/cert-manager/cert-manager/releases/tag/v1.19.6
Product
Release Notes
https://github.com/cert-manager/cert-manager/releases/tag/v1.20.3
Product
Release Notes