{"id":"CVE-2026-59818","aliases":["BIT-etcd-2026-59818","GHSA-3wh4-j44w-pg92"],"url":"https://o3.security/vulnerability/CVE-2026-59818","summary":"etcd: gRPC client listener does not enforce `--client-crl-file` certificate revocation","details":"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.","published":"2026-07-08T21:00:18.207Z","modified":"2026-08-12T03:51:32.904769754Z","cvss":{"score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Bitnami","name":"etcd","fixedVersion":"3.5.32"}],"fix":{"url":"https://github.com/etcd-io/etcd/commit/2308ce1578064641d4d67c40f0487309267d1bef","label":"etcd-io/etcd@2308ce1"},"references":[{"type":"WEB","url":"https://github.com/etcd-io/etcd/releases/tag/v3.5.32"},{"type":"WEB","url":"https://github.com/etcd-io/etcd/releases/tag/v3.6.13"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59818.json"},{"type":"ADVISORY","url":"https://github.com/etcd-io/etcd/security/advisories/GHSA-3wh4-j44w-pg92"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-59818"},{"type":"FIX","url":"https://github.com/etcd-io/etcd/commit/2308ce1578064641d4d67c40f0487309267d1bef"},{"type":"FIX","url":"https://github.com/etcd-io/etcd/commit/24838af5a53dd0245adced920e42a9bf0e7a267f"},{"type":"FIX","url":"https://github.com/etcd-io/etcd/commit/8221ae82bc25d4d55ca64382207b69be71038cbb"},{"type":"FIX","url":"https://github.com/etcd-io/etcd/pull/22007"},{"type":"FIX","url":"https://github.com/etcd-io/etcd/pull/22021"},{"type":"FIX","url":"https://github.com/etcd-io/etcd/pull/22025"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:32.904769754Z"}}