CVE-2026-63464

{"id": "CVE-2026-63464", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-63464", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-09-08T17:49:44.900617Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 7.7, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 4.0, "exploitabilityScore": 3.1}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "forgekeep", "product": "nebula-mesh", "versions": [{"status": "affected", "version": ">= 0.6.0, < 0.7.2"}]}]}], "published": "2026-09-04T20:17:24.730", "references": [{"url": "https://github.com/forgekeep/nebula-mesh/commit/f3c54530e388dd21763e548923426e60a8e93ff0", "source": "security-advisories@github.com"}, {"url": "https://github.com/forgekeep/nebula-mesh/releases/tag/v0.7.2", "source": "security-advisories@github.com"}, {"url": "https://github.com/forgekeep/nebula-mesh/security/advisories/GHSA-7rx3-5wx3-5v76", "source": "security-advisories@github.com"}, {"url": "https://github.com/forgekeep/nebula-mesh/security/advisories/GHSA-7rx3-5wx3-5v76", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-862"}, {"lang": "en", "value": "CWE-918"}]}], "descriptions": [{"lang": "en", "value": "nebula-mesh is a self-hosted control plane for Slack Nebula mesh VPN. From version 0.6.0 to before version 0.7.2, non-admin operators (role user) can set allow_private: true on their own managed webhook subscription (POST/PATCH /api/v1/webhook-subscriptions). No admin check exists on this field. At delivery time, allow_private switches the dispatcher to an unguarded HTTP client, bypassing the private/loopback/link-local SSRF guard \u2014 letting a low-privilege operator make the server request internal addresses. This issue has been patched in version 0.7.2."}], "lastModified": "2026-09-08T21:05:26.920", "sourceIdentifier": "security-advisories@github.com"}