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Openclaw CVE-2026-22174

| EUVDEUVD-2026-12716 MEDIUM
Missing Authentication for Critical Function (CWE-306)
2026-03-18 VulnCheck GHSA-v3j7-34xh-6g3w
5.9
CVSS 4.0 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V6 - Authentication Authentication required for critical functions
MITRE ATT&CK

1 technique across 1 tactic: Initial Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

This vulnerability presents a moderate-to-high real-world risk despite its 5.7 CVSS score (Medium), which reflects the attack vector limitation (Local only) and high complexity (user interaction or specific system configuration required). The CVSS vector (AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N) correctly captures that local attackers without privileges can achieve high confidentiality impact (token disclosure) and limited integrity impact (token reuse for unauthorized actions). The presence of a vendor patch and public GitHub advisory indicates active disclosure and reasonable vendor response time. The automation potential is moderate: while token capture is straightforward (packet sniffing on loopback), exploitation requires controlling a loopback port or intercepting CDP traffic, which has higher complexity than network-based attacks. Under SSVC, this rates as Medium-High priority for systems where local process isolation cannot be guaranteed (containers, shared systems, development environments). Organizations running OpenClaw in multi-tenant or loosely-isolated environments should prioritize patching; isolated production deployments face lower risk but still warrant timely updates.

Exploit ScenarioDerived

A developer on a shared build machine or container host with OpenClaw installed runs a locally-developed tool that listens on a high-numbered loopback port. When OpenClaw's Gateway initiates a Chrome CDP reachability probe to /json/version on 127.0.0.1:9222 (or similar), the attacker's tool intercepts the HTTP traffic and extracts the x-OpenClaw-relay-token header. The attacker then crafts an HTTP request to the OpenClaw Gateway API endpoint (e.g., https://openclaw.internal/api/admin) with Authorization: Bearer [stolen_token], gaining authenticated access to Gateway functionality without credentials. This is feasible with minimal complexity tools (netcat, tcpdump, curl) and requires only local system access, making it a realistic threat in development, CI/CD, and shared infrastructure scenarios.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 18, 2026

OpenClaw Gateway versions prior to 2026.2.22 leak authentication tokens through Chrome DevTools Protocol (CDP) probe traffic on loopback interfaces, allowing local attackers to intercept the x-OpenClaw-relay-token header and reuse it for unauthorized Gateway access. An attacker with local network access or control of a loopback port can capture reachability probes to the /json/version endpoint and escalate privileges by replaying the stolen token as bearer authentication. A vendor patch is available, and this vulnerability has been documented by VulnCheck with references to the official GitHub security advisory and patch commit.

RemediationAI

Upgrade OpenClaw to version 2026.2.22 or later immediately; the vendor patch is available and should be applied without delay. If immediate patching is not feasible, implement network-level mitigations by restricting loopback interface access to trusted processes only, disabling CDP probes if not required for monitoring, and monitoring /json/version endpoint access logs for suspicious patterns. Additionally, enforce token rotation policies and revoke any tokens that may have been exposed during the window of vulnerability. Implement host-level network segmentation using firewall rules to prevent unprivileged processes from binding to loopback ports that OpenClaw uses for probes. For development and container environments, use network policies and seccomp/AppArmor profiles to isolate OpenClaw processes from other local services.

Affected VersionsENISA

OpenClaw 0 <2026.2.22

Affected Packages

npm openclaw fix: 2026.2.22

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in npm

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The vulnerability exists in how OpenClaw (cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:*:*:*) implements Chrome DevTools Protocol (CDP) reachability probes on loopback interfaces. Chrome CDP is a debugging protocol that communicates over localhost by design; however, OpenClaw incorrectly injects the x-OpenClaw-relay-token header—intended for Gateway authentication—into these probes rather than using a separate, probe-specific credential mechanism. This violates the principle of least privilege in credential handling and stems from CWE-306 (Missing Authentication for Critical Function), where sensitive authentication material is transmitted without appropriate protection or context-specific isolation. The root cause is a failure to distinguish between production authentication tokens and diagnostic/probe traffic, resulting in confidential tokens being exposed to any process listening on loopback ports.

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Severity by source

NVD PRIMARY 5.9 MEDIUM
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Local
Attack Complexity
Low
Attack Requirements
Present
Privileges Required
None
User Interaction
None
Vulnerable system: Confidentiality
High
Vulnerable system: Integrity
Low
Vulnerable system: Availability
None
Subsequent system: Confidentiality
None
Subsequent system: Integrity
None
Subsequent system: Availability
None

Lifecycle Timeline

2
Patch released
Mar 18, 2026 - 02:30 nvd
Patch available
CVE Published
Mar 18, 2026 - 01:34 nvd
MEDIUM 5.9

DescriptionCVE.org

OpenClaw versions prior to 2026.2.22 inject the x-OpenClaw-relay-token header into Chrome CDP probe traffic on loopback interfaces, allowing local processes to capture the Gateway authentication token. An attacker controlling a loopback port can intercept CDP reachability probes to the /json/version endpoint and reuse the leaked token as Gateway bearer authentication.

Executive ViewAI

Why It Matters

CVE-2026-22174 presents moderate security risk, a missing authentication vulnerability rated CVSS 5.9. This could allow unauthorized access to protected resources. A patch is available and should be applied during regular vulnerability management.

Business Impact: Low
Compensating Controls

Apply vendor patch. If patching is delayed: restrict network access, enable MFA, monitor auth logs.

Threat Intelligence Overview

EPSS Score
0.0%
Top 97% exploitable
Data Quality
6 sources
Confidence: High

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.0%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact
Low

Priority Score

30
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +30
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

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CVE-2026-32049 HIGH POC
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OpenClaw versions prior to 2026.2.22 contain a resource exhaustion vulnerability where the application fails to consiste

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