CVE-2026-58214

{"id": "CVE-2026-58214", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-58214", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-09T13:32:18.907165Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "nats-io", "product": "nats-server", "versions": [{"status": "affected", "version": "< 2.12.12"}, {"status": "affected", "version": ">= 2.14.0-RC.1, < 2.14.3"}]}]}], "published": "2026-07-08T20:16:54.347", "references": [{"url": "https://github.com/nats-io/nats-server/commit/297b166be60fe13144084eed4b25201ead03204a", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/nats-io/nats-server/commit/34b09657bb596d5f850eaa5cfc97ea6b2f989a97", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/nats-io/nats-server/releases/tag/v2.12.12", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/nats-io/nats-server/releases/tag/v2.14.3", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/nats-io/nats-server/security/advisories/GHSA-4g68-3pwx-5vfj", "tags": ["Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-863"}]}], "descriptions": [{"lang": "en", "value": "NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.3 and 2.12.12, an authenticated MQTT client could subscribe to the internal $MQTT.deliver.pubrel subject family, bypassing configured subscribe permissions and exposing MQTT QoS2 protocol metadata for sessions in the account. This issue is fixed in versions 2.14.3 and 2.12.12."}], "lastModified": "2026-07-13T15:17:13.573", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:linuxfoundation:nats-server:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3662387F-C5A6-478A-94D1-849E3C7E81DB", "versionEndExcluding": "2.12.12"}, {"criteria": "cpe:2.3:a:linuxfoundation:nats-server:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9BF70729-64AF-4219-BC35-3C5C042F0595", "versionEndExcluding": "2.14.3", "versionStartIncluding": "2.14.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}