Improper Privilege Management Affecting github.com/aiven/aiven-operator/controllers package, versions >=0.31.0 <0.37.0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published15 Apr 2026
- disclosed9 Apr 2026
- creditAndrés Cruciani
Introduced: 9 Apr 2026
CVE-2026-39961 (opens in a new tab)How to fix?
Upgrade github.com/aiven/aiven-operator/controllers to version 0.37.0 or higher.
Overview
Affected versions of this package are vulnerable to Improper Privilege Management via the ClickhouseUser/ServiceUser. An attacker can access sensitive information from other namespaces by supplying a crafted namespace value, causing the operator to read secrets from unauthorized locations and write them into a secret in the attacker's namespace.
Note:
This is only exploitable if the attacker has created permissions on ClickhouseUser custom resources in their own namespace and the operator is running with a ClusterRole that allows cluster-wide secret read/write access.