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OpenAdvisories
High · 7.1 CVE-2026-26287 EUVD-2026-93468GHSA-q7hv-xx6h-q2x8GO-2026-6667

External Secrets Operator: label enforcement bypass in webhook generator enables secret exfiltration

Published Oct 6, 2026 · Updated Oct 6, 2026 · Assigned by GitHub_M

Description

External Secrets Operator reads information from a third-party service and automatically injects the values as Kubernetes Secrets. Starting in version 0.10.0 and prior to version 1.3.2, a bug in the `webhook` generator initialization order incorrectly cleared the label-enforcement flag (`EnforceLabels`) after it was set, resulting in the provider-side check for `external-secrets.io/type=webhook` being skipped (and the operation to succeed while it should have failed with `secret does not contain needed label 'external-secrets.io/type: webhook'. Update secret label to use it with webhook`. Version 1.3.2 contains a patch.

Affected products

VendorProductAffectedFixed
external-secrets external-secrets >= 0.10.0, < 1.3.2 —

Affected packages

EcosystemPackageAffectedFixedRecord
Go github.com/external-secrets/external-secrets >= 0.10.0, < 1.3.2 1.3.2 GHSA-q7hv-xx6h-q2x8

References