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SCA: security update for github.com/aiven/aiven-operator (GHSA-99j8-wv67-4c72)

medium Tenable Cloud Security Plugin ID 440150

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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. (CVE-2026-39961)

Solution

Update the github.com/aiven/aiven-operator library and its related packages to version 0.37.0 or later.

See Also

https://github.com/advisories/GHSA-99j8-wv67-4c72

Plugin Details

Severity: Medium

ID: 440150

Version: Revision 1.6

Type: Local

Family: SCA Checks

Published: 4/10/2026

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.73

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 4.5

Vector: CVSS2#AV:N/AC:L/Au:M/C:C/I:N/A:N

CVSS Score Source: CVE-2026-39961

CVSS v3

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 4.3

Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 4/10/2026

Vulnerability Publication Date: 4/9/2026

Reference Information

CVE: CVE-2026-39961