CVE-2026-26287External Secrets Operator: label enforcement bypass in webhook generator enables secret exfiltration
Updated under an hour ago ()
Does this affect you?
It affects external-secrets. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.24%, higher than 15% of scored CVEs.
Do this next
Free account, 1 product
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.
- CVSS
- 7.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
- Weakness (CWE)
- CWE-696
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.24% (percentile 15)
- Assigned by
- GitHub_M
- NVD analysis
- Awaiting Analysis
- Record last updated
- Oct 6, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
external-secrets external-secrets external_secrets:external_secrets (from the name) | from 0.10.0, < 1.3.2 | CNA record |
References
- https://github.com/external-secrets/external-secrets/security/advisories/GHSA-q7hv-xx6h-q2x8x-refsource-confirm
- https://github.com/external-secrets/external-secrets/pull/5901x-refsource-misc
- https://github.com/external-secrets/external-secrets/commit/25aa09275861e3ed6fc5d2a1a60b9ac3df4a93bax-refsource-misc
- https://github.com/external-secrets/external-secrets/releases/tag/v1.3.2x-refsource-misc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.