CVE-2026-58251

{"id": "CVE-2026-58251", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-58251", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-09T13:40:09.306056Z"}}], "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:L/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "nats-io", "product": "nats-server", "versions": [{"status": "affected", "version": "< 2.11.16"}, {"status": "affected", "version": ">= 2.12.0-RC.1, < 2.12.7"}]}]}], "published": "2026-07-08T20:16:54.630", "references": [{"url": "https://github.com/nats-io/nats-server/commit/013586288078def45a6788096924eb4d150db65c", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/nats-io/nats-server/commit/79c2f6e9ff87f594596337b6427dda85c38d1fe1", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/nats-io/nats-server/commit/b9ffb63b85e7db3d25a13b2e234f5f7f7c13164d", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/nats-io/nats-server/releases/tag/v2.11.16", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/nats-io/nats-server/releases/tag/v2.12.7", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/nats-io/nats-server/releases/tag/v2.14.0", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/nats-io/nats-server/security/advisories/GHSA-jx8g-9g95-6322", "tags": ["Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-285"}]}], "descriptions": [{"lang": "en", "value": "NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.0, 2.12.7, and 2.11.16, an authenticated user with subscription deny permissions could bypass a plain subject deny rule by using a queue subscription, because queue-specific deny evaluation could override the plain subject deny result when the queue name itself was not denied. This issue is fixed in versions 2.14.0, 2.12.7, and 2.11.16."}], "lastModified": "2026-07-13T15:23:31.787", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:linuxfoundation:nats-server:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "64D69F6E-293C-4D5F-92F6-8479213F7727", "versionEndExcluding": "2.11.16"}, {"criteria": "cpe:2.3:a:linuxfoundation:nats-server:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DEE2D11B-BD56-4479-A5EB-79F352DA68AB", "versionEndExcluding": "2.12.7", "versionStartIncluding": "2.12.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}