CVE-2026-59818

highpriority · track · 32EPSS 0.004 · 37 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.43% (37th) EPSS

CVSS 8.1 · high

Is it mine?

11 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · osv · cert_bund

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

8.1

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.5–8.1

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 5.2

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Nsecondary · ENISA EU

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Nsecondary · security-advisories@github.comexploitability 1.2 · impact 5.2

v3.17.4highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-295US

affected products (11)

Products and version ranges known to be affected.

Microsoft Azure Linux azl3all versionscert_bundDEcpe:/o:microsoft:azure_linux:azl3
Open Source etcd <3.5.32all versionscert_bundDE
Open Source etcd <3.6.13all versionscert_bundDE
Open Source etcd< 3.5.32cert_bundDE
Open Source etcd< 3.6.13cert_bundDE
etcd-io etcd≤ < 3.5.32enisa_euvdEU
etcd-io etcd3.6.0-alpha.0, → 3.6.13enisa_euvdEU
etcd etcd< 3.5.32nvdUScpe:2.3:a:etcd:etcd:*:*:*:*:*:*:*:*
etcd etcd3.6.0 → 3.6.13nvdUScpe:2.3:a:etcd:etcd:*:*:*:*:*:*:*:*
Bitnami etcd< 3.5.32osvUSpkg:bitnami/etcd
Bitnami etcd3.6.0 → 3.6.13osvUSpkg:bitnami/etcd

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-2243etcd: Schwachstelle ermöglicht Umgehen von SicherheitsvorkehrungenDeutsch2026-07-08csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in etcd ausnutzen, um Sicherheitsvorkehrungen zu umgehen.
BIT-etcd-2026-59818etcd: gRPC client listener does not enforce `--client-crl-file` certificate revocation2026-07-14vendor · osvUS
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.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd osv cert_bund nvd NVD CVE.org MITRE

published 2026-07-08modified 2026-10-25

references (27)

External citations — patches, advisories, analysis.

scry

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