What is the CVSS score of EUVD-2026-21132?

EUVD-2026-21132 has a CVSS 4.0 base score of 8.7 (High). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N. EPSS exploitation probability: 0.0%.

How to fix or mitigate EUVD-2026-21132?

Within 24 hours: Inventory all OpenClaw deployments and identify systems running versions prior to 2026.3.22. Within 7 days: Apply vendor-released patch to upgrade all affected OpenClaw instances to version 2026.3.22 or later; coordinate patching to minimize operational disruption. Within 30 days: Conduct post-patch validation, review access logs for suspicious privilege escalation activity, and audit all active sessions for unauthorized administrative scope claims.

Openclaw EUVD-2026-21132

Q: Which versions of Openclaw are affected by EUVD-2026-21132?

CVE-2026-35638 is a high-severity privilege escalation vulnerability in OpenClaw Control UI (versions prior to 2026.3.22) that allows attackers to bypass authentication and assume arbitrary…. A patch is available.

| CVE-2026-35638 HIGH

Incorrect User Management (CWE-286)

2026-04-09 VulnCheck

GHSA-q49f-7fgv-7hx8

Privilege Escalation Openclaw

8.7

CVSS 4.0 · NVD

View

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

Access

Send unauthenticated request to Control UI
Delivery

Declare arbitrary privileged scopes
Exploit

Bypass device identity verification
Execution

Exploit trusted-proxy device-less allow path
Persist

Retain elevated permissions
Impact

Access protected resources

Vulnerability Assessment

Weakness	CWE CWE-286
Exploitation Conditions	OpenClaw before version 2026.3.22. Requires authenticated user with low privilege. Attacker declares arbitrary scopes through the device-less allow path in trusted-proxy mechanism to bypass device identity verification and escalate to privileged permissions in the Control UI.
Impact	CVSS 8.7 reflects high confidentiality/integrity impact via network-accessible privilege escalation requiring low authentication. EPSS data unavailable for assessment. Authenticated attackers can self-declare elevated scopes, bypassing device identity verification in the trusted-proxy mechanism. Patch availability mitigates immediate risk, but exploitation requires valid credentials and network access to Control UI.
Exploit ScenarioDerived	Authenticated attacker sends crafted request to Control UI declaring arbitrary privileged scopes without device identity verification, exploiting the device-less allow path in trusted-proxy logic. Request succeeds due to missing scope validation, granting elevated permissions for subsequent API calls. No public exploit identified at time of analysis.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

Patch available 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Apr 09, 2026

Privilege escalation in OpenClaw Control UI enables unauthenticated attackers to claim arbitrary privileged scopes without device identity verification. By exploiting the trusted-proxy mechanism's device-less allow path, attackers bypass authentication requirements and maintain elevated permissions across sessions. Affects OpenClaw versions prior to 2026.3.22. Attackers with low-privilege access can escalate to high-impact confidentiality and integrity compromise. No public exploit identified at time of analysis.

RemediationAI

Vendor-released patch: OpenClaw 2026.3.22. Immediate upgrade required to patched version, which implements device identity verification for all scope declarations in the trusted-proxy Control UI flow. Apply commits 630f1479c44f78484dfa21bb407cbe6f171dac87 and ccf16cd8892402022439346ae1d23352e3707e9e from upstream repository. If immediate patching is not feasible, disable or restrict network access to the Control UI interface and enforce network-level authentication via reverse proxy with validated device certificates until upgrade completion. Detailed technical analysis and vendor advisory available at https://github.com/openclaw/openclaw/security/advisories/GHSA-48vw-m3qc-wr99 and https://www.vulncheck.com/advisories/openclaw-privilege-escalation-via-self-declared-scopes-in-trusted-proxy-control-ui

Affected VersionsENISA

OpenClaw 0 <2026.3.22

Affected Packages

npm openclaw fix: 2026.3.22

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

Root cause lies in CWE-286 (incorrect authentication) within trusted-proxy Control UI code path. Vulnerable logic accepts self-declared scope claims from unauthenticated sessions without validating device identity, violating zero-trust principles. CVSS vector PR:L indicates low-privilege requirement but effective privilege escalation to administrative scope via scope injection.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 8.7 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Attack Requirements

None

Privileges Required

Low

User Interaction

None

Vulnerable system: Confidentiality

High

Vulnerable system: Integrity

High

Vulnerable system: Availability

High

Subsequent system: Confidentiality

None

Subsequent system: Integrity

None

Subsequent system: Availability

None

Lifecycle Timeline

Patch released

Apr 09, 2026 - 21:45 nvd

Patch available

CVE Published

Apr 09, 2026 - 21:27 nvd

HIGH 8.7

DescriptionCVE.org

OpenClaw before 2026.3.22 contains a privilege escalation vulnerability in the Control UI that allows unauthenticated sessions to retain self-declared privileged scopes without device identity verification. Attackers can exploit the device-less allow path in the trusted-proxy mechanism to maintain elevated permissions by declaring arbitrary scopes, bypassing device identity requirements.

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

5 npm packages depend on openclaw (5 direct, 0 indirect)

Ecosystem-wide dependent count for version 2026.3.22.

Executive ViewAI

Why It Matters

CVE-2026-35638 is a high-severity privilege escalation vulnerability in OpenClaw Control UI (versions prior to 2026.3.22) that allows attackers to bypass authentication and assume arbitrary administrative privileges, potentially enabling unauthorized access to sensitive systems and data. Organizations running affected OpenClaw versions face immediate risk of credential compromise and lateral movement by attackers seeking to establish persistent privileged access.

Business Impact: High

Compensating Controls

Apply vendor patch. If immediate patching is not feasible, implement network segmentation to restrict access to OpenClaw Control UI to trusted networks only, enforce additional identity verification for privilege scope changes, and increase monitoring of authentication and privilege escalation events for anomalous patterns.

Threat Intelligence Overview

EPSS Score

0.0%

Top 87% exploitable

Data Quality

7 sources

Confidence: High

EUVD

NVD

CVE.org

EPSS

Vulnrichment CIRCL

GitHub

VulDB

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 HIGH

CISA KEV No

Public POC No

EPSS 0.0%

Patch available Yes

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

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

Scheduled

Exploitation

None

System Exposure· derived

Open

Automatable

Human Impact

High

Technical Impact

Total

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +44

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Privilege Escalation HIGH

Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.