CVE-2026-63097

Dendrite through 0.13.8 contains an improper access control vulnerability in the syncapi /context endpoint syncapi/routing/context.go that allows authenticated local users to access post-leave room state events by exploiting a flawed membership check that evaluates only the RoomExists field while...

CVE-2026-63097

Dendrite through 0.13.8 contains an improper access control vulnerability in the syncapi /context endpoint syncapi/routing/context.go that allows authenticated local users to access post-leave room state events by exploiting a flawed membership check that evaluates only the RoomExists field while...

CVE-2026-63097 Dendrite 0.13.8 syncapi /context Endpoint Post-Leave State Exposure

Dendrite through 0.13.8 contains an improper access control vulnerability in the syncapi /context endpoint syncapi/routing/context.go that allows authenticated local users to access post-leave room state events by exploiting a flawed membership check that evaluates only the RoomExists field while...

CVE-2026-63097 Dendrite 0.13.8 syncapi /context Endpoint Post-Leave State Exposure

Dendrite through 0.13.8 contains an improper access control vulnerability in the syncapi /context endpoint syncapi/routing/context.go that allows authenticated local users to access post-leave room state events by exploiting a flawed membership check that evaluates only the RoomExists field while...

CVE-2026-63097 Dendrite 0.13.8 syncapi /context Endpoint Post-Leave State Exposure

Dendrite through 0.13.8 contains an improper access control vulnerability in the syncapi /context endpoint syncapi/routing/context.go that allows authenticated local users to access post-leave room state events by exploiting a flawed membership check that evaluates only the RoomExists field while...

CVE-2026-63097

Dendrite 0.13.8 is affected by an improper access-control in the syncapi /context endpoint (syncapi/routing/context.go). The flaw uses a flawed membership check that only considers RoomExists, ignoring IsInRoom, HasBeenInRoom, and Membership fields, allowing authenticated local users who have lef...

CVE-2026-63096

Dendrite through 0.13.8 contains a server-side request forgery vulnerability that allows unauthenticated attackers to cause the server to open outbound TLS connections to arbitrary hosts and ports by supplying an unvalidated serverName parameter to the legacy media download endpoint. Attackers ca...

CVE-2026-63096 Dendrite 0.13.8 SSRF via Unauthenticated Legacy Media Download Endpoint

Dendrite through 0.13.8 contains a server-side request forgery vulnerability that allows unauthenticated attackers to cause the server to open outbound TLS connections to arbitrary hosts and ports by supplying an unvalidated serverName parameter to the legacy media download endpoint. Attackers ca...

CVE-2026-63096 Dendrite 0.13.8 SSRF via Unauthenticated Legacy Media Download Endpoint

Dendrite through 0.13.8 contains a server-side request forgery vulnerability that allows unauthenticated attackers to cause the server to open outbound TLS connections to arbitrary hosts and ports by supplying an unvalidated serverName parameter to the legacy media download endpoint. Attackers ca...

CVE-2026-63095 Dendrite 0.13.8 Improper Authorization via POST account/3pid/delete Endpoint

Dendrite through 0.13.8 contains an improper authorization vulnerability in the Matrix Client-Server API that allows any authenticated local user to delete third-party identifier bindings belonging to other users by submitting an arbitrary address and medium to the account deletion endpoint witho...

CVE-2026-63095 Dendrite 0.13.8 Improper Authorization via POST account/3pid/delete Endpoint

Dendrite through 0.13.8 contains an improper authorization vulnerability in the Matrix Client-Server API that allows any authenticated local user to delete third-party identifier bindings belonging to other users by submitting an arbitrary address and medium to the account deletion endpoint witho...

CVE-2026-63095 Dendrite 0.13.8 Improper Authorization via POST account/3pid/delete Endpoint

Dendrite through 0.13.8 contains an improper authorization vulnerability in the Matrix Client-Server API that allows any authenticated local user to delete third-party identifier bindings belonging to other users by submitting an arbitrary address and medium to the account deletion endpoint witho...

CVE-2026-63095

Dendrite through 0.13.8 contains an improper authorization vulnerability in the Matrix Client-Server API that allows any authenticated local user to delete third-party identifier bindings belonging to other users by submitting an arbitrary address and medium to the account deletion endpoint witho...

EUVD-2026-45192

Dendrite through 0.13.8 contains an improper authorization vulnerability in the Matrix Client-Server API that allows any authenticated local user to delete third-party identifier bindings belonging to other users by submitting an arbitrary address and medium to the account deletion endpoint witho...

CVE-2026-63095

CVE-2026-63095 affects Dendrite up to version 0.13.8. An improper authorization flaw in the Matrix Client-Server API allows any authenticated local user to delete another user’s third-party identifier (3PID) bindings by submitting an arbitrary address/medium to the account deletion endpoint witho...

PT-2026-60788

Dendrite through 0.13.8 contains an improper authorization vulnerability in the Matrix Client-Server API that allows any authenticated local user to delete third-party identifier bindings belonging to other users by submitting an arbitrary address and medium to the account deletion endpoint witho...

CVE-2026-63096: Server-Side Request Forgery (SSRF)

Dendrite through 0.13.8 contains a server-side request forgery vulnerability that allows unauthenticated attackers to cause the server to open outbound TLS connections to arbitrary hosts and ports by supplying an unvalidated serverName parameter to the legacy media download endpoint. Attackers ca...

CVE-2026-63097: Incorrect Authorization

Dendrite through 0.13.8 contains an improper access control vulnerability in the syncapi /context endpoint syncapi/routing/context.go that allows authenticated local users to access post-leave room state events by exploiting a flawed membership check that evaluates only the RoomExists field while...

CVE-2026-63095: Authorization Bypass Through User-Controlled Key

Dendrite through 0.13.8 contains an improper authorization vulnerability in the Matrix Client-Server API that allows any authenticated local user to delete third-party identifier bindings belonging to other users by submitting an arbitrary address and medium to the account deletion endpoint witho...

PT-2026-60789

Dendrite through 0.13.8 contains a server-side request forgery vulnerability that allows unauthenticated attackers to cause the server to open outbound TLS connections to arbitrary hosts and ports by supplying an unvalidated serverName parameter to the legacy media download endpoint. Attackers ca...