CVE-2025-47282: Github.com/gardener/external dns management Gardener External DNS Management Allows Vulnerability
CRITICALCVE-2025-47282 is a CRITICAL (CVSS 9.9) gardener external dns management allows vulnerability (CWE-269: Improper Privilege Management) affecting Github.com/gardener/external dns management libraries in the Go ecosystem. The issue involves gardener external dns management allows malicious google credential in dns secret to lead to privilege escalation. Remediation is available by upgrading affected packages to version 0.23.6.
CVE-2025-47282 at a Glance
Security Impact
CVSS: 9.9
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H).
How to Fix CVE-2025-47282
To remediate this vulnerability, upgrade all affected Github.com/gardener/external dns management dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
Upgrade github.com/gardener/external-dns-management to 0.23.6Upgrade github.com/gardener/gardener-extension-shoot-dns-service to Latest secure releaseRun the following command in your project directory to verify that all resolved dependencies use the patched release:
inspect dependencies for github.com/gardener/external-dns-managementHow to Check if You Are Affected
To determine whether your application is affected by CVE-2025-47282, inspect your project dependencies for Github.com/gardener/external dns management:
inspect dependencies for github.com/gardener/external-dns-managementAnalyze the terminal output to locate any version of Github.com/gardener/external dns management in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.23.6), your application is affected.
Note: Verify declared build manifests and deployed runtime container environments.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-269: Improper Privilege Management, where the product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. In Github.com/gardener/external dns management, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2025-47282 Affected Github.com/gardener/external dns management Versions
2 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
github.com/gardener/external-dns-management
|
Go |
< 0.23.6
|
0.23.6
|
|
github.com/gardener/gardener-extension-shoot-dns-service
|
Go |
≤ 1.6.0
|
|
References
Frequently Asked Questions
What is CVE-2025-47282?
Which Github.com/gardener/external dns management versions are affected?
What version fixes CVE-2025-47282?
Is github.com/gardener/external-dns-management affected?
Is github.com/gardener/gardener-extension-shoot-dns-service affected?
What is the CVSS score of CVE-2025-47282?
What CWE is associated with CVE-2025-47282?
How can I check Go dependencies for CVE-2025-47282?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-xwgg-m7fx-83wx",
"modified" : "2025-05-19T19:12:48Z",
"published" : "2025-05-19T19:12:48Z",
"aliases" : [ "CVE-2025-47282" ],
"summary" : "Gardener External DNS Management allows malicious google credential in DNS secret to lead to privilege escalation",
"details" : "A security vulnerability was discovered in Gardener that could allow a user with administrative privileges for a Gardener project or a user with administrative privileges for a shoot cluster, including administrative privileges for a single namespace of the shoot cluster, to obtain control over the seed cluster where the shoot cluster is managed.\n\n### Am I Vulnerable?\n\nThis CVE affects all Gardener installations no matter of the public cloud provider(s) used for the seed clusters/shoot clusters.\n\n### Affected Components\n\n- `gardener/external-dns-management`\n\n### Affected Versions\n\n- < 0.23.6\n\n### Fixed Versions\n\n- >= 0.23.6\n\n### Important\n\nThe `external-dns-management` component may also be deployed on the seeds by the https://github.com/gardener/gardener-extension-shoot-dns-service extension when the extension is enabled. In this case, all versions of the `shoot-dns-service` extension `<= v1.60.0` are affected by this vulnerability.\n\n### How do I mitigate this vulnerability?\n\nUpdate to a fixed version.",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Go",
"name" : "github.com/gardener/external-dns-management"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "0.23.6"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Go",
"name" : "github.com/gardener/gardener-extension-shoot-dns-service"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"last_affected" : "1.6.0"
} ]
} ]
} ],
"references" : [ {
"type" : "WEB",
"url" : "https://github.com/gardener/external-dns-management/security/advisories/GHSA-xwgg-m7fx-83wx"
}, {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-47282"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/gardener/external-dns-management"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-20", "CWE-269" ],
"severity" : "CRITICAL",
"github_reviewed" : true,
"github_reviewed_at" : "2025-05-19T19:12:48Z",
"nvd_published_at" : "2025-05-19T18:15:30Z"
}
}