What is CVE-2026-26287?

CVE-2026-26287 is a high-severity vulnerability in External-Secrets, classified under CWE-696. CVSS score: 7.1/10. Published 2026-10-06.

How severe is CVE-2026-26287?

High severity. CVSS v3 base score is 7.1 out of 10.

Vulnerability in External-Secrets

CVE-2026-26287

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.

Published 2026-10-06.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

External-Secrets — versions >= 0.10.0, < 1.3.2

Weakness classification (CWE)

CWE-696

References

Frequently asked questions

What is CVE-2026-26287?: CVE-2026-26287 is a high-severity vulnerability in External-Secrets, classified under CWE-696. CVSS score: 7.1/10. Published 2026-10-06.
How severe is CVE-2026-26287?: High severity. CVSS v3 base score is 7.1 out of 10.