{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-58214", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-29T17:09:25.873Z", "datePublished": "2026-07-08T20:06:34.794Z", "dateUpdated": "2026-07-08T20:06:34.794Z"}, "containers": {"cna": {"title": "NATS Server: MQTT subscribe ACL bypass via $MQTT.deliver.pubrel prefix (incomplete fix for CVE-2026-33217)", "problemTypes": [{"descriptions": [{"cweId": "CWE-863", "lang": "en", "description": "CWE-863: Incorrect Authorization", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/nats-io/nats-server/security/advisories/GHSA-4g68-3pwx-5vfj", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/nats-io/nats-server/security/advisories/GHSA-4g68-3pwx-5vfj"}, {"name": "https://github.com/nats-io/nats-server/commit/297b166be60fe13144084eed4b25201ead03204a", "tags": ["x_refsource_MISC"], "url": "https://github.com/nats-io/nats-server/commit/297b166be60fe13144084eed4b25201ead03204a"}, {"name": "https://github.com/nats-io/nats-server/commit/34b09657bb596d5f850eaa5cfc97ea6b2f989a97", "tags": ["x_refsource_MISC"], "url": "https://github.com/nats-io/nats-server/commit/34b09657bb596d5f850eaa5cfc97ea6b2f989a97"}, {"name": "https://github.com/nats-io/nats-server/releases/tag/v2.12.12", "tags": ["x_refsource_MISC"], "url": "https://github.com/nats-io/nats-server/releases/tag/v2.12.12"}, {"name": "https://github.com/nats-io/nats-server/releases/tag/v2.14.3", "tags": ["x_refsource_MISC"], "url": "https://github.com/nats-io/nats-server/releases/tag/v2.14.3"}], "affected": [{"vendor": "nats-io", "product": "nats-server", "versions": [{"version": "< 2.12.12", "status": "affected"}, {"version": ">= 2.14.0-RC.1, < 2.14.3", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-08T20:06:34.794Z"}, "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."}], "source": {"advisory": "GHSA-4g68-3pwx-5vfj", "discovery": "UNKNOWN"}}}}

{}

{}

{}

{}