CVE-2026-50192 Kerberos Hub private key (X-Kerberos-Hub-PrivateKey) leaked to cross-host redirect target due to redirect-following HTTP client without CheckRedirect

Kerberos Agent is an open source video surveillance management agent. Prior to version 3.6.26, the Kerberos Hub upload path sends the agent's Hub credentials in the custom X-Kerberos-Hub-PrivateKey and X-Kerberos-Hub-PublicKey request headers to the operator-configured Hub URL config.HubURI. The...

EUVD-2026-63684

Kerberos Agent is an open source video surveillance management agent. Prior to version 3.6.26, the Kerberos Hub upload path sends the agent's Hub credentials in the custom X-Kerberos-Hub-PrivateKey and X-Kerberos-Hub-PublicKey request headers to the operator-configured Hub URL config.HubURI. The...

CVE-2026-50192

Kerberos Agent (open-source video surveillance agent) prior to v3.6.26 leaks the Hub private key (X-Kerberos-Hub-PrivateKey) to a cross-host redirect target. The UploadKerberosHub function in machinery/src/cloud/kerberos_hub.go uses a bare &http.Client{} without a CheckRedirect policy. Go's net/h...

EUVD-2026-63683

BigBlueButton is an open-source virtual classroom. Prior to 3.0.29, BigBlueButton presenters could submit a presentationId through /api/graphql that identified a presentation belonging to another meeting...

CVE-2026-55489 BigBlueButton: IDOR on BBB through /api/graphql via POST parameter "presentationId" leads to Authentication Bypass

BigBlueButton is an open-source virtual classroom. Prior to 3.0.29, BigBlueButton presenters could submit a presentationId through /api/graphql that identified a presentation belonging to another meeting...

CVE-2026-55489 BigBlueButton: IDOR on BBB through /api/graphql via POST parameter "presentationId" leads to Authentication Bypass

BigBlueButton is an open-source virtual classroom. Prior to 3.0.29, BigBlueButton presenters could submit a presentationId through /api/graphql that identified a presentation belonging to another meeting...

CVE-2026-55489

BigBlueButton (open-source virtual classroom) is vulnerable to an IDOR (Insecure Direct Object Reference) in its presentation deletion handler. Prior to 3.0.29 , the file RemovePresentationPubMsgHdlr.scala did not verify that a submitted presentationId belonged to the same meeting before performi...

CVE-2026-55489 BigBlueButton: IDOR on BBB through /api/graphql via POST parameter "presentationId" leads to Authentication Bypass

BigBlueButton is an open-source virtual classroom. Prior to 3.0.29, BigBlueButton presenters could submit a presentationId through /api/graphql that identified a presentation belonging to another meeting...

CVE-2026-55491 BigBlueButton: Stored XSS in Screenshare Recording Playback via Unescaped Meeting Name

BigBlueButton is an open-source virtual classroom. Prior to 3.0.29, BigBlueButton failed to escape meetingName in record-and-playback/screenshare/playback/index.html.erb when generating the screenshare playback format. A low-privileged user could store a crafted meeting name that embedded script...

CVE-2026-55491

BigBlueButton versions prior to 3.0.29 have a stored XSS flaw: the meetingName field is rendered unescaped in record-and-playback/screenshare/playback/index.html.erb, so a low-privileged user can inject script that runs when another user replays the recording. CVSS 3.1 scores 5.4 (Medium). Upgrad...

CVE-2026-55491 BigBlueButton: Stored XSS in Screenshare Recording Playback via Unescaped Meeting Name

BigBlueButton is an open-source virtual classroom. Prior to 3.0.29, BigBlueButton failed to escape meetingName in record-and-playback/screenshare/playback/index.html.erb when generating the screenshare playback format. A low-privileged user could store a crafted meeting name that embedded script...

CVE-2026-55491 BigBlueButton: Stored XSS in Screenshare Recording Playback via Unescaped Meeting Name

BigBlueButton is an open-source virtual classroom. Prior to 3.0.29, BigBlueButton failed to escape meetingName in record-and-playback/screenshare/playback/index.html.erb when generating the screenshare playback format. A low-privileged user could store a crafted meeting name that embedded script...

EUVD-2026-63682

BigBlueButton is an open-source virtual classroom. Prior to 3.0.29, BigBlueButton failed to escape meetingName in record-and-playback/screenshare/playback/index.html.erb when generating the screenshare playback format. A low-privileged user could store a crafted meeting name that embedded script...

GHSA-R553-M4FV-5V97 Mailpit: SMTP DATA line reader buffers over-limit input before size enforcement

Summary Mailpit's SMTP DATA reader enforces the configured MaxMessageSize only after bufio.Reader.ReadBytes'\n' has already buffered a complete DATA line. A remote unauthenticated SMTP client can send one line larger than the configured message-size cap and force memory allocation before Mailpit...

Mailpit: SMTP DATA line reader buffers over-limit input before size enforcement

Summary Mailpit's SMTP DATA reader enforces the configured MaxMessageSize only after bufio.Reader.ReadBytes'\n' has already buffered a complete DATA line. A remote unauthenticated SMTP client can send one line larger than the configured message-size cap and force memory allocation before Mailpit...

CVE-2026-46355

BigBlueButton prior to 3.0.23 exposed the /bigbluebutton/api/handleJoinExistingUser endpoint through a routable controller action in ApiController.groovy rather than a private helper. An authenticated requester who could supply the existingUserID of an active participant was able to reuse that pa...

EUVD-2026-63680

BigBlueButton is an open-source virtual classroom. Prior to 3.0.23, BigBlueButton exposed /bigbluebutton/api/handleJoinExistingUser through bigbluebutton-web/grails-app/controllers/org/bigbluebutton/web/controllers/ApiController.groovy. A requester able to supply an existingUserID for an active...

CVE-2026-46355 BigBlueButton: Unauthenticated Session Hijack via Exposed /bigbluebutton/api/handleJoinExistingUser

BigBlueButton is an open-source virtual classroom. Prior to 3.0.23, BigBlueButton exposed /bigbluebutton/api/handleJoinExistingUser through bigbluebutton-web/grails-app/controllers/org/bigbluebutton/web/controllers/ApiController.groovy. A requester able to supply an existingUserID for an active...

CVE-2026-46355 BigBlueButton: Unauthenticated Session Hijack via Exposed /bigbluebutton/api/handleJoinExistingUser

BigBlueButton is an open-source virtual classroom. Prior to 3.0.23, BigBlueButton exposed /bigbluebutton/api/handleJoinExistingUser through bigbluebutton-web/grails-app/controllers/org/bigbluebutton/web/controllers/ApiController.groovy. A requester able to supply an existingUserID for an active...

CVE-2026-46355 BigBlueButton: Unauthenticated Session Hijack via Exposed /bigbluebutton/api/handleJoinExistingUser

BigBlueButton is an open-source virtual classroom. Prior to 3.0.23, BigBlueButton exposed /bigbluebutton/api/handleJoinExistingUser through bigbluebutton-web/grails-app/controllers/org/bigbluebutton/web/controllers/ApiController.groovy. A requester able to supply an existingUserID for an active...