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Openclaw CVE-2026-35659

| EUVDEUVD-2026-21464 MEDIUM
Insufficient Verification of Data Authenticity (CWE-345)
2026-04-10 VulnCheck
5.1
CVSS 4.0 · NVD
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Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A08:2025 - Software or Data Integrity Failures
ASVS 5.0
V15 - Secure Coding and Architecture Data authenticity verification
Impact

CVSS 4.6 with attack vector Adjacent (AV:A), low complexity (AC:L), no privilege requirement (PR:N), but requires user interaction (UI:R) indicates a moderate local-network threat with limited immediate impact. The CVSS vector shows limited confidentiality and integrity impact (C:L, I:L) and no availability impact (A:N). EPSS data is not provided, but the adjacent-network-only attack surface and user interaction requirement significantly limit real-world exploitation probability compared to the CVSS base score suggests. However, on networks where OpenClaw is actively used (engineering, distributed systems teams), an attacker positioned on the same network segment could reliably trigger routing misconfigurations. The information disclosure and integrity compromise components (routing hijacking) pose tangible risk in environments where OpenClaw coordinates service discovery for critical workflows. This is a credible local-network attack rather than a broadly critical remote issue.

Exploit ScenarioDerived

An attacker positioned on the same network segment (adjacent network, e.g., shared WiFi or Ethernet subnet) crafts malicious DNS-SD TXT records advertising a fake OpenClaw service. A legitimate OpenClaw user or administrator queries for services, and the vulnerable application processes the malicious metadata to redirect its CLI routing to an attacker-controlled endpoint, allowing interception or manipulation of configuration data. No authentication is required from the attacker's perspective; user interaction (clicking or running a discovery-based command) is necessary. No public exploit code or confirmed active exploitation is identified in the provided data.

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 10, 2026

OpenClaw before version 2026.3.22 accepts unresolved Bonjour and DNS-SD service discovery metadata to influence CLI routing decisions, allowing attackers on adjacent networks to redirect traffic to attacker-controlled targets through malicious TXT records. The vulnerability requires user interaction and adjacent network access but can cause information disclosure and integrity compromise without authentication.

RemediationAI

Upgrade OpenClaw to version 2026.3.22 or later. Vendor-released patch is available; upstream fixes are documented in commits 630f1479c44f78484dfa21bb407cbe6f171dac87 and deecf68b59a9b7eea978e40fd3c2fe543087b569 on GitHub. Until patched, operators should restrict network access to systems running OpenClaw and avoid using Bonjour/DNS-SD service discovery on untrusted network segments, or disable automatic service discovery if alternative configuration methods are available. See the GitHub security advisory at https://github.com/openclaw/openclaw/security/advisories/GHSA-rvqr-hrcc-j9vv for detailed mitigation options.

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

The vulnerability stems from CWE-345 (Insufficient Verification of Data Authenticity), where OpenClaw's CLI routing logic trusts Bonjour/DNS-SD TXT metadata even when service resolution fails. Bonjour and DNS-SD are zero-configuration networking protocols that advertise services via multicast DNS. The flaw allows an attacker to craft malicious DNS-SD discovery packets containing falsified service metadata (TXT records) that influence routing decisions despite the underlying service never resolving to a valid endpoint. This is a logic flaw in the service discovery trust chain-the application acts on hints without proper endpoint validation. The affected product OpenClaw (cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:*:*:*) versions prior to 2026.3.22 are vulnerable.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 5.1 MEDIUM
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Adjacent
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
Passive
Vulnerable system: Confidentiality
Low
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
Apr 10, 2026 - 16:30 nvd
Patch available
CVE Published
Apr 10, 2026 - 16:03 nvd
MEDIUM 5.1

DescriptionCVE.org

OpenClaw before 2026.3.22 contains a service discovery vulnerability where TXT metadata from Bonjour and DNS-SD could influence CLI routing even when actual service resolution failed. Attackers can exploit unresolved hints to steer routing decisions to unintended targets by providing malicious discovery metadata.

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.

Threat Intelligence Overview

EPSS Score
0.0%
Top 100% exploitable
Data Quality
8 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 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
Controlled
Automatable
No
Human Impact· derived
Medium
Technical Impact
Partial

Priority Score

26
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +26
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.

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

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

CVE-2026-32056 HIGH POC
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OpenClaw versions prior to 2026.2.22 contain a shell environment variable injection vulnerability in the system.run func

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