Incorrect Behavior Order Affecting github.com/external-secrets/external-secrets package, versions >=0.10.0 <1.3.2
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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Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMEXTERNALSECRETSEXTERNALSECRETS-20883338
- published13 Oct 2026
- disclosed6 Oct 2026
- creditUnknown
Introduced: 6 Oct 2026
NewCVE-2026-26287 (opens in a new tab)How to fix?
Upgrade github.com/external-secrets/external-secrets to version 1.3.2 or higher.
Overview
Affected versions of this package are vulnerable to Incorrect Behavior Order via the webhook generator initialization process. An attacker can access and exfiltrate sensitive secrets by bypassing label enforcement checks and referencing secrets not intended for webhook use. This is only exploitable if the attacker has permissions to create webhook generators and can set them to reference secrets lacking the required label.
Workaround
This vulnerability can be mitigated by disabling webhook generators, restricting RBAC permissions for creating webhook generators, enforcing admission policies requiring secrets to be labeled appropriately, or restricting egress from controller pods.