Bug 2498305 (CVE-2026-59818) - CVE-2026-59818 etcd: etcd: Authentication bypass due to improper Certificate Revocation List enforcement on gRPC listener
Summary: CVE-2026-59818 etcd: etcd: Authentication bypass due to improper Certificate ...
Keywords:
Status: NEW
Alias: CVE-2026-59818
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2498395
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-07-08 22:03 UTC by OSIDB Bzimport
Modified: 2026-07-09 06:08 UTC (History)
7 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-07-08 22:03:05 UTC 
etcd is a distributed key-value store for the data of a distributed system. Prior to 3.5.32 and 3.6.13, when etcd is configured with --listen-client-http-urls to split HTTP and gRPC client endpoints onto separate listeners, the --client-crl-file Certificate Revocation List is not enforced on the gRPC listener, allowing a client with a revoked certificate to authenticate successfully over gRPC. This issue is fixed in versions 3.5.32 and 3.6.13.
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