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Openclaw CVE-2026-41300

MEDIUM
Incomplete Internal State Distinction (CWE-372)
2026-04-21 disclosure@vulncheck.com
6.9
CVSS 4.0 · NVD
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Attack ChainAIDerived

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

  1. Recon
    Position on network during onboarding
  2. Delivery
    Inject malicious endpoint into discovery
  3. Exploit
    Operator declines trust in discovery phase
  4. Install
    Application fails to purge endpoint from workflow state
  5. C2
    Endpoint reappears in manual approval prompt
  6. Execute
    Operator accepts previously-declined endpoint
  7. Impact
    Gateway credentials routed to attacker infrastructure

Vulnerability Assessment

Weakness
CWE
Exploitation Conditions

Exploitation requires the following specific conditions: (1) Remote onboarding feature must be active and the target system must initiate or participate in an onboarding flow, (2) Attacker must be able to influence endpoint discovery by either controlling network responses (MITM position) or by having injected a malicious endpoint URL into the discovery process, (3) An operator must interact with the onboarding workflow and encounter the trust decline prompt for the attacker's endpoint, (4) The same operator or a different operator must later proceed to the manual approval phase and accept the endpoint URL that was previously declined. The vulnerability does NOT require authentication (PR:N), does NOT require special privileges, and does NOT require non-default configuration - it affects default onboarding flows. However, exploitation is limited to scenarios where operators can be influenced to accept attacker-controlled endpoints, and the attacker must maintain presence or influence during the discovery phase. Organizations using OpenClaw in fully air-gapped or zero-trust endpoint environments face reduced risk.

Impact

This vulnerability carries moderate-to-high real-world risk despite the medium CVSS score. The CVSS vector indicates network-accessible exploitation (AV:N/AC:L) requiring only user interaction (UI:A) with no authentication needed (PR:N), making it broadly exploitable. The impact is specifically confidentiality of gateway credentials (VC:H), which are typically sensitive authentication tokens or connection strings. However, the requirement for user interaction (UI:A) limits attack scope to scenarios where an attacker can influence endpoint discovery or network conditions during onboarding. The lack of EPSS score, KEV status, or public exploit data suggests limited active exploitation at analysis time, but the logical simplicity of the vulnerability (URL persistence across trust boundaries) and the high-value target (gateway credentials) indicate it poses real risk to organizations actively deploying OpenClaw's remote onboarding feature. The vulnerability is not automatable without environmental manipulation (network positioning or endpoint discovery influence), which moderately constrains widespread exploitation potential. Organizations using OpenClaw should prioritize patching based on exposure to untrusted networks during onboarding rather than treating this as emergency-critical.

Exploit ScenarioDerived

An attacker positions themselves on the network path during a target organization's OpenClaw remote onboarding process (via ARP spoofing, DNS hijacking, or BGP interception). During endpoint discovery, the attacker injects a malicious endpoint URL pointing to their server. When the operator declines trust for this endpoint in the initial discovery phase, the application fails to remove it from the workflow state. Later, when the operator proceeds to manual approval of endpoints, the attacker's URL reappears in the approval prompt. The operator, seeing the URL has survived to the approval stage, may incorrectly assume it passed validation and accepts it, causing gateway credentials to be routed to the attacker's infrastructure.

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 – Apr 21, 2026

OpenClaw before version 2026.3.31 fails to properly invalidate attacker-discovered endpoints during trust decline operations in remote onboarding workflows, allowing attackers to route gateway credentials to malicious endpoints by preserving their URLs through the trust decline process into manual operator acceptance prompts. The vulnerability requires user interaction (UI:A) but affects gateway credential confidentiality (VC:H), posing a significant risk to organizations using OpenClaw's remote onboarding feature with CVSS 6.9 (medium-high severity).

RemediationAI

Upgrade OpenClaw to version 2026.3.31 or later, which properly invalidates attacker-discovered endpoints during trust decline operations and prevents them from persisting into subsequent approval prompts. The patch is available via the GitHub commit 2a75416634837c21ed05b8c3ed906eb7a7807060 and official release. Organizations unable to upgrade immediately should restrict remote onboarding operations to trusted, controlled network environments where endpoint discovery cannot be influenced by attackers, implement network segmentation to limit gateway credential exposure from onboarding flows, and mandate manual verification of endpoint URLs by operators before accepting them in approval prompts rather than relying on cached URL suggestions. These compensating controls reduce but do not eliminate risk, as they increase operational friction and depend on operator vigilance.

Affected Packages

npm openclaw fix: 2026.3.31

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

OpenClaw is a remote onboarding and credential management platform that implements endpoint discovery and trust validation mechanisms. The vulnerability stems from improper handling of endpoint trust decisions in CWE-372 (Incomplete Internal State Distinction), where the application fails to adequately distinguish between trusted and untrusted states across different workflow phases. Specifically, when an operator declines trust for an attacker-discovered endpoint during the initial discovery phase, the application does not properly purge this endpoint from subsequent process flows. The endpoint URL persists into manual acceptance prompts, where operators may re-encounter and accept it without realizing it was previously rejected, creating a logical bypass of the trust validation mechanism. This affects OpenClaw's remote onboarding gateway credential management system across all versions before 2026.3.31.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 6.9 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/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
None
User Interaction
Active
Vulnerable system: Confidentiality
High
Vulnerable system: Integrity
None
Vulnerable system: Availability
None
Subsequent system: Confidentiality
None
Subsequent system: Integrity
None
Subsequent system: Availability
None

Lifecycle Timeline

2
Patch released
Apr 21, 2026 - 02:30 nvd
Patch available
CVE Published
Apr 21, 2026 - 00:16 nvd
MEDIUM 6.9

DescriptionCVE.org

OpenClaw before 2026.3.31 contains a trust-decline vulnerability that preserves attacker-discovered endpoints in remote onboarding flows. Attackers can route gateway credentials to malicious endpoints by having their discovered URL survive the trust decline process into manual prompts requiring operator acceptance.

Blast Radius

ecosystem impact
† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth
  • 1 npm packages depend on openclaw (1 direct, 0 indirect)

Ecosystem-wide dependent count for version 2026.3.31.

Threat Intelligence Overview

EPSS Score
0.0%
Top 92% exploitable
Data Quality
6 sources
Confidence: High
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 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
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact· derived
Medium
Technical Impact
Partial

Priority Score

34
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +34
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)CVE.org

cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
CVE-2026-28446 CRITICAL POC
9.4 Mar 05

Auth bypass in OpenClaw voice-call extension before 2026.2.1. EPSS 0.68%. PoC and patch available.

CVE-2026-33579 CRITICAL POC
9.4 Mar 31

Privilege escalation in OpenClaw (pre-2026.3.28) allows unauthenticated remote attackers to gain administrative access b

CVE-2026-32042 HIGH POC
8.8 Mar 21

OpenClaw versions 2026.2.22 through 2026.2.24 contain a privilege escalation vulnerability that allows authenticated att

CVE-2026-32051 HIGH POC
8.8 Mar 21

An authorization mismatch vulnerability in OpenClaw versions prior to 2026.3.1 allows authenticated users with operator.

CVE-2026-25253 HIGH POC
8.8 Feb 01

OpenClaw versions prior to 2026.1.29 automatically establish WebSocket connections to attacker-controlled gateway URLs e

CVE-2026-32846 HIGH POC
8.7 Mar 26

Path traversal in OpenClaw through version 2026.3.23 enables unauthenticated remote attackers to read arbitrary files in

CVE-2026-53857 HIGH POC
8.6 Jun 16

Authentication bypass in OpenClaw before 2026.5.3 allows remote attackers with low privileges to receive agent responses

CVE-2026-100530 HIGH POC
8.5 Sep 26

Directory-context bypass in OpenClaw before 2026.8.1 allows authenticated attackers with user interaction to reuse an 'a

CVE-2026-32064 HIGH POC
8.5 Mar 21

Unauthenticated access to the noVNC observer interface in OpenClaw's Docker sandbox browser allows anyone who can reach

CVE-2026-32055 HIGH POC
7.6 Mar 21

OpenClaw versions before 2026.2.26 allow authenticated attackers to write arbitrary files outside the workspace director

CVE-2026-32056 HIGH POC
7.5 Mar 21

OpenClaw versions prior to 2026.2.22 contain a shell environment variable injection vulnerability in the system.run func

CVE-2026-32049 HIGH POC
7.5 Mar 21

OpenClaw versions prior to 2026.2.22 contain a resource exhaustion vulnerability where the application fails to consiste

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