CVE-2026-26287 External Secrets Operator - Broken Access Control

External Secrets Operator >= 0.10.0 and < 1.3.2 contains a broken access control caused by incorrect webhook generator initialization, letting attackers bypass label enforcement checks, exploit requires use of webhook provider.

CVSS base score 7.1 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.24% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Broken Access Control
Impact
Broken Access Control
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Published
6 October 2026
Updated
15 October 2026
Weakness
CWE-696

Vendor fix

Update to version 1.3.2 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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