CVE-2026-42876: ExternalSecrets vulnerable to privilege escalation with secret overwriting
(updated )
ExternalSecrets allows users to craft Service Account tokens for misconfigured Service Accounts in namespaces the users have access to.
References
- github.com/advisories/GHSA-fq7h-9x26-6j22
- github.com/external-secrets/external-secrets/commit/4ddd240af7fe88725d9857b9a0c198073502e288
- github.com/external-secrets/external-secrets/releases/tag/v2.4.1
- github.com/external-secrets/external-secrets/security/advisories/GHSA-fq7h-9x26-6j22
- nvd.nist.gov/vuln/detail/CVE-2026-42876
Code Behaviors & Features
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