| Name | CVE-2026-59818 |
| 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. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1141963 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| etcd (PTS) | bullseye | 3.3.25+dfsg-6 | fixed |
| bookworm | 3.4.23-4 | fixed | |
| trixie | 3.5.16-4 | vulnerable | |
| forky, sid | 3.5.30-2 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| etcd | source | bullseye | (not affected) | |||
| etcd | source | bookworm | (not affected) | |||
| etcd | source | (unstable) | (unfixed) | 1141963 |
[bookworm] - etcd <not-affected> (Split HTTP/gRPC listener onlyGRPC CRL path introduced in 3.5.0; absent in 3.4.x)
[bullseye] - etcd <not-affected> (Split HTTP/gRPC listener onlyGRPC CRL path introduced in 3.5.0; absent in 3.3.x)
https://github.com/etcd-io/etcd/security/advisories/GHSA-3wh4-j44w-pg92
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/commit/2308ce1578064641d4d67c40f0487309267d1bef (main)
https://github.com/etcd-io/etcd/commit/8221ae82bc25d4d55ca64382207b69be71038cbb (v3.6.13)
https://github.com/etcd-io/etcd/commit/24838af5a53dd0245adced920e42a9bf0e7a267f (v3.5.32)