{"id":"CVE-2026-46404","state":"PUBLISHED","title":"BigBlueButton: Presentation URL Security Hardening","description":"BigBlueButton is an open-source virtual classroom. Prior to 3.0.23, the presentation URL validation did not properly restrict access to site local and link local addresses. The redirect following logic now pins resolved IPs. This issue is fixed in version 3.0.23.","publishedAt":"2026-07-16T18:04:11.116Z","updatedAt":"2026-07-17T18:06:48.388Z","severity":{"score":6.8,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["bigbluebutton bigbluebutton"],"affected":[{"vendor":"bigbluebutton","product":"bigbluebutton","versions":[{"version":"< 3.0.23","status":"affected"}]}],"references":["https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-xqm3-6q7q-4v5h","https://github.com/bigbluebutton/bigbluebutton/commit/7ccc60c965d744d9fb637715052352a1e59a2c27"],"weaknesses":["CWE-918"],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/46xxx/CVE-2026-46404.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-46404","state":"PUBLISHED","datePublished":"2026-07-16T18:04:11.116Z","dateUpdated":"2026-07-17T18:06:48.388Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-05-13T21:04:10.932Z"},"containers":{"cna":{"title":"BigBlueButton: Presentation URL Security Hardening","descriptions":[{"lang":"en","value":"BigBlueButton is an open-source virtual classroom. Prior to 3.0.23, the presentation URL validation did not properly restrict access to site local and link local addresses. The redirect following logic now pins resolved IPs. This issue is fixed in version 3.0.23."}],"affected":[{"vendor":"bigbluebutton","product":"bigbluebutton","versions":[{"version":"< 3.0.23","status":"affected"}]}],"references":[{"url":"https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-xqm3-6q7q-4v5h","name":"https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-xqm3-6q7q-4v5h","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/bigbluebutton/bigbluebutton/commit/7ccc60c965d744d9fb637715052352a1e59a2c27","name":"https://github.com/bigbluebutton/bigbluebutton/commit/7ccc60c965d744d9fb637715052352a1e59a2c27","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.8,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"HIGH","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-918","lang":"en","description":"CWE-918: Server-Side Request Forgery (SSRF)","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-07-16T18:04:11.116Z"},"source":{"advisory":"GHSA-xqm3-6q7q-4v5h","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-17T17:16:37.373798Z","id":"CVE-2026-46404","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-17T18:06:48.388Z"}}]}}}