SEPTEMBER 19, 2026
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Case File

CVE-2026-59818

MEDIUM · CVSS 6.5 EPSS 0.32% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-08 · Last synced 2026-08-07

CyberRota Analysis

AI-Generated

A vulnerability exists in etcd versions prior to 3.5.32 and 3.6.13, where the Certificate Revocation List (CRL) is not enforced on the gRPC listener when HTTP and gRPC client endpoints are separated. This allows clients with revoked certificates to authenticate successfully, potentially compromising the integrity of the system. Organizations using affected versions of etcd should prioritize upgrading to the patched versions to mitigate the risk of unauthorized access.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

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CVE
CVE-2026-59818
Severity
MEDIUM
CVSS
6.5
EPSS
0.32%

Original NVD Description

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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