CVE-2026-59818

{"id": "CVE-2026-59818", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-59818", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-07-09T13:13:02.654220Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 1.2}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "etcd-io", "product": "etcd", "versions": [{"status": "affected", "version": ">= 3.6.0-alpha.0, < 3.6.13"}, {"status": "affected", "version": "< 3.5.32"}]}]}], "published": "2026-07-08T21:16:54.503", "references": [{"url": "https://github.com/etcd-io/etcd/commit/2308ce1578064641d4d67c40f0487309267d1bef", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/etcd-io/etcd/commit/24838af5a53dd0245adced920e42a9bf0e7a267f", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/etcd-io/etcd/commit/8221ae82bc25d4d55ca64382207b69be71038cbb", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/etcd-io/etcd/pull/22007", "tags": ["Issue Tracking", "Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/etcd-io/etcd/pull/22021", "tags": ["Issue Tracking", "Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/etcd-io/etcd/pull/22025", "tags": ["Issue Tracking", "Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/etcd-io/etcd/releases/tag/v3.5.32", "tags": ["Product", "Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/etcd-io/etcd/releases/tag/v3.6.13", "tags": ["Product", "Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/etcd-io/etcd/security/advisories/GHSA-3wh4-j44w-pg92", "tags": ["Mitigation", "Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-295"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "etcd es un almac\u00e9n distribuido de clave-valor para los datos de un sistema distribuido. Antes de las versiones 3.5.32 y 3.6.13, cuando etcd est\u00e1 configurado con --listen-client-http-urls para dividir los puntos finales de cliente HTTP y gRPC en oyentes separados, la Lista de Revocaci\u00f3n de Certificados --client-crl-file no se aplica en el oyente gRPC, permitiendo que un cliente con un certificado revocado se autentique con \u00e9xito a trav\u00e9s de gRPC. Este problema est\u00e1 solucionado en las versiones 3.5.32 y 3.6.13."}], "lastModified": "2026-10-25T17:10:00.197", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:etcd:etcd:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5B21E29C-EB51-46BA-AFB6-F1B788A81FC2", "versionEndExcluding": "3.5.32"}, {"criteria": "cpe:2.3:a:etcd:etcd:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B09A9BF8-8A36-4BC6-8145-D9E06883045E", "versionEndExcluding": "3.6.13", "versionStartIncluding": "3.6.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}