6.8
CVE-2026-39961
- EPSS 0.39%
- Veröffentlicht 09.04.2026 18:17:02
- Zuletzt bearbeitet 13.05.2026 16:06:00
- Quelle security-advisories@github.com
- CVE-Watchlists
- Unerledigt
LoginAiven Operator has cross-namespace secret exfiltration via ClickhouseUser connInfoSecretSource
Aiven Operator allows you to provision and manage Aiven Services from your Kubernetes cluster. From 0.31.0 to before 0.37.0, a developer with create permission on ClickhouseUser CRDs in their own namespace can exfiltrate secrets from any other namespace — production database credentials, API keys, service tokens — with a single kubectl apply. The operator reads the victim's secret using its ClusterRole and writes the password into a new secret in the attacker's namespace. The operator acts as a confused deputy: its ServiceAccount has cluster-wide secret read/write (aiven-operator-role ClusterRole), and it trusts user-supplied namespace values in spec.connInfoSecretSource.namespace without validation. No admission webhook enforces this boundary — the ServiceUser webhook returns nil, and no ClickhouseUser webhook exists. This vulnerability is fixed in 0.37.0.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Aiven ≫ Aiven Operator Version >= 0.31.0 < 0.37.0
| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.39% | 0.31 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| nvd@nist.gov | 4.9 | 1.2 | 3.6 |
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
|
| security-advisories@github.com | 6.8 | 2.3 | 4 |
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
|
CWE-269 Improper Privilege Management
The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.
CWE-441 Unintended Proxy or Intermediary ('Confused Deputy')
The product receives a request, message, or directive from an upstream component, but the product does not sufficiently preserve the original source of the request before forwarding the request to an external actor that is outside of the product's control sphere. This causes the product to appear to be the source of the request, leading it to act as a proxy or other intermediary between the upstream component and the external actor.
https://github.com/aiven/aiven-operator/commit/032c9ba63257fdd2fddfb7f73f71830e371ff182
https://github.com/aiven/aiven-operator/releases/tag/v0.37.0
https://github.com/aiven/aiven-operator/security/advisories/GHSA-99j8-wv67-4c72