PT-2026-65519 · Sdelements · Lets-Chat

Theodosis Paidakis · CVE-2026-66749 · Publicado 2026-07-28 · Atualizado 2026-07-28

Mitre

CVSS v3.1

6.5

Média

Vetor base

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

Let's Chat 0.4.0 through 0.4.8 contains a null dereference vulnerability that allows authenticated attackers to crash the server by supplying a valid 24-character hex string room parameter that matches no document in the database. Attackers can send a crafted GET /messages request causing an uncaught TypeError in an asynchronous Mongoose callback that terminates the Node.js server process, with the same defect reachable through multiple code paths including the socket.io interface.

Exploit

Correção

NULL Pointer Dereference

Enumeração de Fraquezas

CWE-476

Identificadores relacionados

CVE-2026-66749

Produtos afetados

Lets-Chat

Referências · 3

• 🔥 https://github.com/theopaid/Unchecked-Room-Lookup-Leads-to-Server-Crash-Let-s-Chat- · Exploit
• https://vulncheck.com/advisories/let-s-chat-denial-of-service-via-null-dereference-in-room-lookup · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-66749 · Nota de Segurança