CVE-2026-34512

Received Received - Intake

Improper Access Control in OpenClaw Allows Admin Session Hijacking

Publication date: 2026-04-09

Last updated on: 2026-04-15

Assigner: VulnCheck

Description

OpenClaw before 2026.3.25 contains an improper access control vulnerability in the HTTP /sessions/:sessionKey/kill route that allows any bearer-authenticated user to invoke admin-level session termination functions without proper scope validation. Attackers can exploit this by sending authenticated requests to kill arbitrary subagent sessions via the killSubagentRunAdmin function, bypassing ownership and operator scope restrictions.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-04-09

Last Modified

2026-04-15

Generated

2026-07-06

AI Q&A

2026-04-10

EPSS Evaluated

2026-07-05

NVD

CVE-2026-34512

EUVD

EUVD-2026-21097

Affected Vendors & Products

Vendor	Product	Version / Range
openclaw	openclaw	to 2026.3.25 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-863	The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

Attack-Flow Graph

Executive Summary

This vulnerability exists in OpenClaw versions before 2026.3.25 and involves improper access control in the HTTP /sessions/:sessionKey/kill route.

Any user authenticated with a bearer token can invoke admin-level session termination functions without proper scope validation.

Attackers can exploit this by sending authenticated requests to kill arbitrary subagent sessions using the killSubagentRunAdmin function, bypassing ownership and operator scope restrictions.

Impact Analysis

This vulnerability allows an attacker with bearer authentication to terminate arbitrary subagent sessions at an admin level without proper authorization.

Such unauthorized session termination can disrupt normal operations, potentially causing denial of service or loss of control over session management.

Hi! I’m here to help you understand CVE-2026-34512. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70