CVE-2026-94111

Published: Sep 20, 2026Modified: Sep 22, 2026Deferred

6.9

Vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XShow less

Source: disclosure@vulncheck.com (Secondary)

Description

Tencent BrowserSkill through 0.3.0 contains an authentication bypass vulnerability in the local daemon WebSocket origin validation that accepts any chrome-extension origin with 32 characters in range a-p. Attackers can register a malicious extension as a browser client to intercept and manipulate page content, DOM, and screenshots returned to the AI agent.

Related CWEs

CWE-346

Origin Validation Error

The product does not properly verify that the source of data or communication is valid.

References (3)

https://github.com/Tencent/BrowserSkill/blob/cli-v0.3.0/crates/bsk-cli/src/daemon/ws.rs#L36-L57

Source: disclosure@vulncheck.com

https://github.com/Tencent/BrowserSkill/issues/273

Source: disclosure@vulncheck.com

https://www.vulncheck.com/advisories/tencent-browserskill-through-0.3.0-origin-validation-error-in-local-websocket-daemon

Source: disclosure@vulncheck.com

Timeline

No history available yet.