{"id":"CVE-2026-42398","aliases":["BIT-elk-2026-42398","BIT-kibana-2026-42398","EUVD-2026-33032","GHSA-43ww-gwmw-f89v"],"status":"published","title":"Server-Side Request Forgery (SSRF) in Kibana Leading to Unauthorized Network Access","description":"Server-Side Request Forgery (CWE-918) in Kibana allows authenticated users with connector management privileges to bypass the operator-configured connection allowlist. By configuring a Webhook connector with a crafted target, an attacker can cause Kibana to issue outbound requests to destinations that the egress restriction controls were intended to block.","severity":{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.003,"percentile":0.22953,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-918"],"published":"2026-05-28T19:47:53Z","modified":"2026-10-28T10:55:15Z","fixes":[{"ecosystem":"Bitnami","package":"elk","fixed_in":["9.2.8","9.3.2"],"sources":["osv"]},{"ecosystem":"Bitnami","package":"kibana","fixed_in":["9.2.8","9.3.2"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"elk","ranges":[{"type":"SEMVER","events":[{"introduced":"9.0.0"},{"fixed":"9.2.8"},{"introduced":"9.3.0"},{"fixed":"9.3.2"}]}]},{"source":"osv","ecosystem":"Bitnami","package":"kibana","ranges":[{"type":"SEMVER","events":[{"introduced":"9.0.0"},{"fixed":"9.2.8"},{"introduced":"9.3.0"},{"fixed":"9.3.2"}]}]}],"products":[{"vendor":"elastic","product":"kibana"}],"references":[{"url":"https://discuss.elastic.co/t/kibana-9-2-8-and-9-3-2-security-update-esa-2026-37/386557","tags":["Vendor Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42398","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-43ww-gwmw-f89v"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42398.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-42398","title":"Server-Side Request Forgery (SSRF) in Kibana Leading to Unauthorized Network Access","description":"Server-Side Request Forgery (CWE-918) in Kibana allows authenticated users with connector management privileges to bypass the operator-configured connection allowlist. By configuring a Webhook connector with a crafted target, an attacker can cause Kibana to issue outbound requests to destinations that the egress restriction controls were intended to block.","status":"published","published":"2026-05-28T19:47:53.44Z","modified":"2026-05-29T16:47:26.181Z","cvss":[{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T13:40:23.731501Z"}],"euvd":[{"id":"EUVD-2026-33032","description":"Server-Side Request Forgery (CWE-918) in Kibana allows authenticated users with connector management privileges to bypass the operator-configured connection allowlist. By configuring a Webhook connector with a crafted target, an attacker can cause Kibana to issue outbound requests to destinations that the egress restriction controls were intended to block.","status":"published","published":"2026-05-28T19:47:53Z","modified":"2026-05-29T16:47:26Z","cvss":[{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T18:21:00.772434Z"}],"ghsa":[{"id":"GHSA-43ww-gwmw-f89v","title":"Server-Side Request Forgery (CWE-918) in Kibana allows authenticated users with connector...","description":"Server-Side Request Forgery (CWE-918) in Kibana allows authenticated users with connector management privileges to bypass the operator-configured connection allowlist. By configuring a Webhook connector with a crafted target, an attacker can cause Kibana to issue outbound requests to destinations that the egress restriction controls were intended to block.","status":"published","published":"2026-05-28T21:32:05Z","modified":"2026-05-28T21:32:11Z","cvss":[{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T15:08:22.24664Z"}],"nvd":[{"id":"CVE-2026-42398","description":"Server-Side Request Forgery (CWE-918) in Kibana allows authenticated users with connector management privileges to bypass the operator-configured connection allowlist. By configuring a Webhook connector with a crafted target, an attacker can cause Kibana to issue outbound requests to destinations that the egress restriction controls were intended to block.","status":"published","published":"2026-05-28T21:16:30.18Z","modified":"2026-10-14T20:10:00.19Z","cvss":[{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T14:12:21.244426Z"}],"osv":[{"id":"CVE-2026-42398","title":"Server-Side Request Forgery (SSRF) in Kibana Leading to Unauthorized Network Access","description":"Server-Side Request Forgery (CWE-918) in Kibana allows authenticated users with connector management privileges to bypass the operator-configured connection allowlist. By configuring a Webhook connector with a crafted target, an attacker can cause Kibana to issue outbound requests to destinations that the egress restriction controls were intended to block.","status":"published","published":"2026-05-28T19:47:53.44Z","modified":"2026-10-28T10:55:15.416266786Z","cvss":[{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T15:45:04.117819Z"},{"id":"BIT-elk-2026-42398","title":"Server-Side Request Forgery (SSRF) in Kibana Leading to Unauthorized Network Access","description":"Server-Side Request Forgery (CWE-918) in Kibana allows authenticated users with connector management privileges to bypass the operator-configured connection allowlist. By configuring a Webhook connector with a crafted target, an attacker can cause Kibana to issue outbound requests to destinations that the egress restriction controls were intended to block.","status":"published","published":"2026-06-01T11:39:11.361Z","modified":"2026-09-08T08:47:21.869279468Z","updated_at":"2026-11-02T15:28:29.563843Z"},{"id":"BIT-kibana-2026-42398","title":"Server-Side Request Forgery (SSRF) in Kibana Leading to Unauthorized Network Access","description":"Server-Side Request Forgery (CWE-918) in Kibana allows authenticated users with connector management privileges to bypass the operator-configured connection allowlist. By configuring a Webhook connector with a crafted target, an attacker can cause Kibana to issue outbound requests to destinations that the egress restriction controls were intended to block.","status":"published","published":"2026-06-01T11:42:50.691Z","modified":"2026-09-08T08:47:35.982571978Z","updated_at":"2026-11-02T15:28:32.162822Z"}]}}