{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-63464", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-07-16T21:37:45.768Z", "datePublished": "2026-09-04T19:44:10.117Z", "dateUpdated": "2026-09-04T19:44:10.117Z"}, "containers": {"cna": {"title": "Nebula-mesh allows non-admin operators to disable webhook SSRF protection via `allow_private`", "problemTypes": [{"descriptions": [{"cweId": "CWE-862", "lang": "en", "description": "CWE-862: Missing Authorization", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-918", "lang": "en", "description": "CWE-918: Server-Side Request Forgery (SSRF)", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.7, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/forgekeep/nebula-mesh/security/advisories/GHSA-7rx3-5wx3-5v76", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/forgekeep/nebula-mesh/security/advisories/GHSA-7rx3-5wx3-5v76"}, {"name": "https://github.com/forgekeep/nebula-mesh/commit/f3c54530e388dd21763e548923426e60a8e93ff0", "tags": ["x_refsource_MISC"], "url": "https://github.com/forgekeep/nebula-mesh/commit/f3c54530e388dd21763e548923426e60a8e93ff0"}, {"name": "https://github.com/forgekeep/nebula-mesh/releases/tag/v0.7.2", "tags": ["x_refsource_MISC"], "url": "https://github.com/forgekeep/nebula-mesh/releases/tag/v0.7.2"}], "affected": [{"vendor": "forgekeep", "product": "nebula-mesh", "versions": [{"version": ">= 0.6.0, < 0.7.2", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-04T19:44:10.117Z"}, "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."}], "source": {"advisory": "GHSA-7rx3-5wx3-5v76", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "nebula-mesh", "vendor": "forgekeep", "versions": [{"status": "affected", "version": ">= 0.6.0, < 0.7.2"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "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."}], "id": "CVE-2026-63464", "lastModified": "2026-09-04T20:17:24.730", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.7, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.1, "impactScore": 4.0, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-09-04T20:17:24.730", "references": [{"source": "security-advisories@github.com", "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"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-862"}, {"lang": "en", "value": "CWE-918"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"created": "2026-09-04T22:00:06.284122+00:00", "updated": "2026-09-04T22:00:06.284128+00:00", "vendors": []}