{"id":"CVE-2026-97373","aliases":["EUVD-2026-117101","GHSA-xc39-mcq4-fr4q"],"status":"published","title":"draw.io: Incomplete SSRF blocklist in `ProxyServlet` / `Utils.sanitizeUrl`: RFC 6598 CGNAT range `100.64.0.0/10` is not blocked -\u003e server-side request to internal CGNAT hosts","description":"draw.io is a configurable diagramming and whiteboarding application. Prior to 30.3.8, the optional /proxy endpoint contains an incomplete server-side request forgery blocklist. When the endpoint is enabled, the URL validator does not reject the RFC 6598 shared address range 100.64.0.0/10. An unauthenticated remote attacker can cause the draw.io server to request internal services that are reachable in this range, potentially disclosing data from Carrier-Grade NAT, Kubernetes, cloud, or overlay-network addresses. This vulnerability is fixed in 30.3.8.","severity":{"version":"3.1","score":5.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00244,"percentile":0.1577,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-918"],"published":"2026-11-04T20:52:51Z","modified":"2026-11-05T13:04:48Z","products":[{"vendor":"jgraph","product":"drawio"}],"references":[{"url":"https://github.com/jgraph/drawio/security/advisories/GHSA-xc39-mcq4-fr4q","tags":["x_refsource_CONFIRM","advisory"]},{"url":"https://github.com/jgraph/drawio/commit/73c4a91196246bbdb60f52b15871e82006b7972d","tags":["x_refsource_MISC","fix"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97373.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-97373","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-97373","title":"draw.io: Incomplete SSRF blocklist in `ProxyServlet` / `Utils.sanitizeUrl`: RFC 6598 CGNAT range `100.64.0.0/10` is not blocked -\u003e server-side request to internal CGNAT hosts","description":"draw.io is a configurable diagramming and whiteboarding application. Prior to 30.3.8, the optional /proxy endpoint contains an incomplete server-side request forgery blocklist. When the endpoint is enabled, the URL validator does not reject the RFC 6598 shared address range 100.64.0.0/10. An unauthenticated remote attacker can cause the draw.io server to request internal services that are reachable in this range, potentially disclosing data from Carrier-Grade NAT, Kubernetes, cloud, or overlay-network addresses. This vulnerability is fixed in 30.3.8.","status":"published","published":"2026-11-04T20:52:51.964Z","modified":"2026-11-09T16:58:10.96Z","cvss":[{"version":"3.1","score":5.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-918"],"updated_at":"2026-11-09T17:34:05.709049Z"}],"euvd":[{"id":"EUVD-2026-117101","description":"draw.io is a configurable diagramming and whiteboarding application. Prior to 30.3.8, the optional /proxy endpoint contains an incomplete server-side request forgery blocklist. When the endpoint is enabled, the URL validator does not reject the RFC 6598 shared address range 100.64.0.0/10. An unauthenticated remote attacker can cause the draw.io server to request internal services that are reachable in this range, potentially disclosing data from Carrier-Grade NAT, Kubernetes, cloud, or overlay-network addresses. This vulnerability is fixed in 30.3.8.","status":"published","published":"2026-11-04T20:52:51Z","modified":"2026-11-09T16:58:10Z","cvss":[{"version":"3.1","score":5.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-09T18:17:39.592818Z"}],"nvd":[{"id":"CVE-2026-97373","description":"draw.io is a configurable diagramming and whiteboarding application. Prior to 30.3.8, the optional /proxy endpoint contains an incomplete server-side request forgery blocklist. When the endpoint is enabled, the URL validator does not reject the RFC 6598 shared address range 100.64.0.0/10. An unauthenticated remote attacker can cause the draw.io server to request internal services that are reachable in this range, potentially disclosing data from Carrier-Grade NAT, Kubernetes, cloud, or overlay-network addresses. This vulnerability is fixed in 30.3.8.","status":"published","published":"2026-11-04T21:18:17.063Z","modified":"2026-11-09T17:17:35.503Z","cvss":[{"version":"3.1","score":5.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-918"],"updated_at":"2026-11-09T20:15:34.048597Z"}],"osv":[{"id":"CVE-2026-97373","title":"draw.io: Incomplete SSRF blocklist in `ProxyServlet` / `Utils.sanitizeUrl`: RFC 6598 CGNAT range `100.64.0.0/10` is not blocked -\u003e server-side request to internal CGNAT hosts","description":"draw.io is a configurable diagramming and whiteboarding application. Prior to 30.3.8, the optional /proxy endpoint contains an incomplete server-side request forgery blocklist. When the endpoint is enabled, the URL validator does not reject the RFC 6598 shared address range 100.64.0.0/10. An unauthenticated remote attacker can cause the draw.io server to request internal services that are reachable in this range, potentially disclosing data from Carrier-Grade NAT, Kubernetes, cloud, or overlay-network addresses. This vulnerability is fixed in 30.3.8.","status":"published","published":"2026-11-04T20:52:51.964Z","modified":"2026-11-11T07:24:41.25791807Z","cvss":[{"version":"3.1","score":5.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-918"],"updated_at":"2026-11-10T02:45:42.584685Z"}]}}