CVE catalog
CVE-2026-59818
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 o
- Severity
- Medium · CVSS 6.5
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.43% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | etcd | sid | 3.5.30-2 | vulnerable |
| Debian | etcd | forky | 3.5.30-2 | vulnerable |
| Debian | etcd | trixie | 3.5.16-4 | vulnerable |
| Debian | etcd | bookworm | 3.4.23-4 | not affected |
| Cpe | etcd | Not reported | Not reported | vulnerable |
| Cpe | etcd | Not reported | 3.6.13 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | etcd | source | sid | (unfixed) | not yet assigned | Not reported | [1141963] |
| Debian | etcd | source | forky | (unfixed) | not yet assigned | Not reported | [1141963] |
| Debian | etcd | source | trixie | (unfixed) | not yet assigned | Not reported | [1141963] |
| Debian | etcd | source | bookworm | Not affected | unimportant | Not reported | [1141963] |
| Cpe | etcd | cpe | Not reported | 3.6.13 | Not reported | NVD-CVE-2026-59818 | Not reported |
Notes
[trixie] etcd: Minor issue
OpenFactory catalog packages
[Debian 13 (Trixie)]
- [etcd-client]Affected
Source package: [etcd]
Details (2)
3.5.16-4· amd64 · trixieAffected
nvd · etcd · debian · 13
3.5.16-4· arm64 · trixieAffected
nvd · etcd · debian · 13
- [etcd-server]Affected
Source package: [etcd]
Details (2)
3.5.16-4· amd64 · trixieAffected
nvd · etcd · debian · 13
3.5.16-4· arm64 · trixieAffected
nvd · etcd · debian · 13
- [golang-etcd-server-dev]Affected
Source package: [etcd]
Details (2)
3.5.16-4· all · trixieAffected
nvd · etcd · debian · 13
3.5.16-4· all · trixieAffected
nvd · etcd · debian · 13
[Debian 12 (Bookworm)]
- [etcd-client]Not affected
Source package: [etcd]
Details (2)
3.4.23-4+b4· amd64 · bookwormNot affected
nvd · etcd · debian · bookworm
3.4.23-4+b4· arm64 · bookwormNot affected
nvd · etcd · debian · bookworm
- [etcd-server]Not affected
Source package: [etcd]
Details (2)
3.4.23-4+b4· amd64 · bookwormNot affected
nvd · etcd · debian · bookworm
3.4.23-4+b4· arm64 · bookwormNot affected
nvd · etcd · debian · bookworm
- [golang-etcd-server-dev]Not affected
Source package: [etcd]
Details (2)
3.4.23-4· all · bookwormNot affected
nvd · etcd · debian · bookworm
3.4.23-4· all · bookwormNot affected
nvd · etcd · debian · bookworm
Observed:
References
- [https://github.com/etcd-io/etcd/commit/2308ce1578064641d4d67c40f0487309267d1bef]
- [https://github.com/etcd-io/etcd/commit/24838af5a53dd0245adced920e42a9bf0e7a267f]
- [https://github.com/etcd-io/etcd/commit/8221ae82bc25d4d55ca64382207b69be71038cbb]
- [https://github.com/etcd-io/etcd/pull/22007]
- [https://github.com/etcd-io/etcd/pull/22021]
- [https://github.com/etcd-io/etcd/pull/22025]
- [https://github.com/etcd-io/etcd/releases/tag/v3.5.32]
- [https://github.com/etcd-io/etcd/releases/tag/v3.6.13]
- [https://github.com/etcd-io/etcd/security/advisories/GHSA-3wh4-j44w-pg92]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-59818]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-59818]
- [https://security-tracker.debian.org/tracker/CVE-2026-59818]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-59818.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2243.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]