P4Verified

CVE-2026-104850: typescript-sdk >= 1.12.0, < 1.31.0, >= 2.0.0, < 2.2.0

CVE-2026-104850 affects @modelcontextprotocol/sdk. CVSS 3.1 base score 7.5 (HIGH, Vendor/CNA). Affected range: >= 1.12.0, < 1.31.0. Fixed version: 1.31.0. Affected range: >= 2.0.0, < 2.2.0. Fixed version: 2.2.0. Fixed version: 4b0051f400219f8d8855f9a5433c6df35f15a639. Fixed version: dd22ba25ddbe7cd8822e1fe9c738a974996a28f6. Fixed version: 1.31.0.

Affected technology

typescript-sdk · >= 1.12.0, < 1.31.0, >= 2.0.0, < 2.2.0
modelcontextprotocol

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

What an attacker can do

Vendor/CNA’s CVSS 3.1 assessment (base score 7.5/10) rates confidentiality impact as high; integrity and availability impact as none. The description does not specify what an attacker can achieve beyond these rated impacts.

Published 2026-10-06 17:56:30.745839+00:00

CWE: CWE-345, CWE-522
Product: @modelcontextprotocol/sdk
CCR priority: 30.0 /100 (P4)
CVSS 3.1: 7.5 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N · Vendor/CNA
KEV: no

Provenance

GitHub Advisory Database · Source record · observed 2026-10-06 17:57:05.567630+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-07 02:34:12.333111+00:00 UTC
OSV.dev · Source record · observed 2026-10-07 03:19:31.921362+00:00 UTC
OSV.dev · Source record · observed 2026-10-07 03:19:31.921362+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-104850.html