CVE-2026-62290

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Source
https://cve.org/CVERecord?id=CVE-2026-62290
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-62290.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-62290
Aliases
  • GHSA-8rvj-mm4h-c258
Published
2026-07-16T19:37:40.255Z
Modified
2026-07-19T03:30:56.668445262Z
Severity
  • 7.3 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N CVSS Calculator
Summary
cert-manager: Direct ACME Challenge resources can bypass Issuer DNS01 solver policy and use ClusterIssuer DNS credentials
Details

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.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62290.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-863"
    ]
}
References

Affected packages

Git / github.com/cert-manager/cert-manager

Affected ranges

Type
GIT
Repo
https://github.com/cert-manager/cert-manager
Events
Introduced
83dae3ef37f50973c0f3b3a818fc7d1b35fff341
Introduced
0d2f215fe26ca2674758b5dfd780f04ac1dfde92
Fixed
60b0447cc9a64885d42567ea590862b88a62d1ad
Fixed
1e1d16d1744e6d9c80e464e58e8d9ab1caed222b
Fixed
6bda47297c8fbc6b121b8b76624b668d26f1a155
Fixed
b37dbf01ecea50a0b3a19df0a7fe4c5ad6803f16
Database specific 
{
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "1.18.0"
        },
        {
            "fixed": "1.19.6"
        },
        {
            "introduced": "1.20.0"
        },
        {
            "fixed": "1.20.3"
        }
    ]
}

Affected versions

v1.*
v1.20.0
v1.20.1
v1.20.2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-62290.json"