PT-2026-60788 · Matrix.Org · Dendrite

George Chen · CVE-2026-63095 · Publicado 2026-07-17 · Atualizado 2026-07-17

Mitre

CVSS v3.1

6.5

Média

Vetor base

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

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 without ownership verification. Attackers can exploit the unverified Forget3PID handler to remove a victim's email or MSISDN binding and subsequently rebind the address through an identity server to hijack the victim's password reset flow.

Exploit

Correção

IDOR

Enumeração de Fraquezas

CWE-639

Identificadores relacionados

CVE-2026-63095

Produtos afetados

Dendrite

Referências · 3

• 🔥 https://github.com/geo-chen/oss/blob/main/dendrite.md#finding-1-idor-in-post-account3piddelete-allows-any-authenticated-user-to-remove-any-other-users-third-party-identifier · Exploit
• https://vulncheck.com/advisories/dendrite-improper-authorization-via-post-account-3pid-delete-endpoint · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-63095 · Nota de Segurança