CVE-2026-102807

medium

Description

OpenClaw before 2026.9.4 contains an incorrect authorization vulnerability in the mcp.app.view method that allows read-scoped operators to execute MCP App tools requiring operator.write scope. Attackers with operator.read tokens can obtain a standalone ticket from mcp.app.view and redeem it at the MCP app view endpoint to invoke state-changing tools without proper authorization checks.

References

https://www.vulncheck.com/advisories/openclaw-before-2026.9.4-authorization-bypass-via-mcp-app-standalone-ticket

https://github.com/openclaw/openclaw/pull/142661

https://github.com/openclaw/openclaw/commit/3bd8ec2b39b5f9e80aef0973f7d17eadc745b8f8

https://github.com/openclaw/openclaw/blob/1391f7cd2d40ab5bbcf2f5f831d3a64f520e72d7/src/gateway/mcp-app-standalone.ts#L209-L215

https://github.com/openclaw/openclaw

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-89107

https://docs.openclaw.ai/releases/2026.9.4

Details

Source: Mitre, NVD

Published: 2026-09-29

Updated: 2026-09-29

Risk Information

CVSS v2

Base Score: 4.9

Vector: CVSS2#AV:N/AC:H/Au:S/C:N/I:C/A:N

Severity: Medium

CVSS v3

Base Score: 5.3

Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N

Severity: Medium

CVSS v4

Base Score: 6

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Severity: Medium

EPSS

EPSS: 0.0023