Access Control Bypass Affecting github.com/external-secrets/external-secrets/pkg/controllers/pushsecret package, versions >=0.15.0 <0.19.2


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.04% (9th percentile)

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  • Snyk IDSNYK-GOLANG-GITHUBCOMEXTERNALSECRETSEXTERNALSECRETSPKGCONTROLLERSPUSHSECRET-11799544
  • published14 Aug 2025
  • disclosed13 Aug 2025
  • creditMoritz Johner

Introduced: 13 Aug 2025

NewCVE-2025-55196  (opens in a new tab)
CWE-284  (opens in a new tab)

How to fix?

Upgrade github.com/external-secrets/external-secrets/pkg/controllers/pushsecret to version 0.19.2 or higher.

Overview

Affected versions of this package are vulnerable to Access Control Bypass via the List() calls for Kubernetes Secret and SecretStore resources performed by the PushSecret controller, which does not apply a namespace selector. An attacker can access sensitive information from arbitrary namespaces by leveraging label selectors to list and read secrets or secret-stores across the cluster.

Note: This is exploitable if the attacker has permissions to create or update PushSecret resources and control one or more SecretStore resources.

Workaround

This vulnerability can be mitigated by restricting RBAC permissions so that only trusted service accounts can create or update PushSecret and SecretStore resources, auditing existing resources to ensure they are controlled by trusted parties, and reviewing Network Policies to prevent data exfiltration.

CVSS Base Scores

version 4.0
version 3.1