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Openclaw CVE-2026-41302

MEDIUM
Server-Side Request Forgery (SSRF) (CWE-918)
2026-04-21 disclosure@vulncheck.com
4.8
CVSS 4.0 · NVD
View

Attack ChainAIDerived

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

  1. Access
    Compromise or obtain valid OpenClaw credentials
  2. Delivery
    Craft malicious internal URL in marketplace payload
  3. Exploit
    Wait for authenticated user to initiate plugin download
  4. Execution
    User clicks download button triggering fetch() call
  5. Persist
    SSRF request sent to internal target
  6. Impact
    Exfiltrate response data containing sensitive information

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V4 - API and Web Service URL allowlisting, SSRF prevention
MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Credential Access

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

Exploitation Conditions

The vulnerability requires the following specific conditions: (1) the attacker must possess valid OpenClaw user credentials (authentication required per PR:L); (2) the user must actively interact with the marketplace plugin download functionality (UI:P indicates user interaction is mandatory-the exploit cannot be triggered via network requests alone); (3) the marketplace plugin must be enabled and accessible within the OpenClaw deployment; (4) the application runtime context must have network access to the target internal service (SSRF impact is limited to services reachable from the OpenClaw process). The CVSS attack time pressure (AT:P) suggests an additional temporal constraint, likely that the marketplace download must occur during a specific time window or the attacker's crafted URL must be pre-positioned before the user interaction. Notably, unauthenticated remote exploitation is NOT possible-an attacker cannot trigger this vulnerability without first compromising or obtaining valid OpenClaw credentials. The user interaction requirement prevents fully autonomous exploitation via malicious network traffic alone.

Impact

The CVSS 4.8 score indicates moderate severity, but the attack vector combination reveals limited real-world exploitability: the vulnerability requires an authenticated user (PR:L), explicit user interaction (UI:P), and attack time pressure (AT:P), substantially reducing autonomous exploit probability. The CVSS vector shows integrity impact only (VI:L) with no confidentiality or availability impact recorded, contradicting typical SSRF risk where internal resource access often leads to data disclosure or remote code execution via interaction with internal services. EPSS exploitation probability data is not provided, preventing calibration against baseline vulnerability populations. No CISA KEV listing or public proof-of-concept code has been identified, suggesting this is not actively exploited in the wild or weaponized. The authentication and user interaction requirements are significant limiting factors: an attacker cannot exploit this remotely without a valid OpenClaw account and user action. However, the combination of SSRF with internal network access potential and the presence of a security advisory indicates this is a legitimate priority for organizations running OpenClaw with trusted-user threat models. The real-world risk depends heavily on what internal services are accessible from the OpenClaw application context and whether users can be socially engineered to trigger downloads.

Exploit ScenarioDerived

An authenticated OpenClaw user receives a social engineering message encouraging them to download a seemingly legitimate plugin update from the marketplace. The attacker has crafted a malicious marketplace entry or manipulated the plugin download URL to point to an internal service (e.g., http://169.254.169.254/latest/meta-data for AWS metadata or http://10.0.1.50:6379 for an internal Redis instance). When the user clicks the download button, the OpenClaw server makes an outbound request to the attacker's specified URL, exposing sensitive internal data (cloud credentials, API keys, cache contents) back to the attacker's monitoring system.

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 contains a server-side request forgery (SSRF) vulnerability in the marketplace plugin download functionality, where unguarded fetch() calls allow authenticated users with user interaction to make arbitrary network requests on behalf of the affected system. Remote attackers can access internal resources or interact with external services, potentially disclosing sensitive data or compromising internal infrastructure; no public exploit code or active exploitation has been identified at time of analysis.

RemediationAI

Upgrade OpenClaw to version 2026.3.31 or later, which includes patches to the marketplace plugin download functionality that implement proper request validation. The upstream fix is confirmed via GitHub commit 8deb9522f3d2680820588b190adb4a2a52f3670b and security advisory GHSA-9q7v-8mr7-g23p. If immediate upgrade is not feasible, restrict network access from the OpenClaw application process to only explicitly required external endpoints using firewall rules or SELinux/AppArmor policies-deny outbound connections to private IP ranges (10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16, 127.0.0.1, 169.254.169.254) and localhost ports used by internal services. This compensating control will prevent SSRF attacks from reaching internal infrastructure but may degrade functionality if the marketplace legitimately requires access to internal update repositories. Alternative mitigation: disable the marketplace plugin entirely if not actively used, accepting reduced feature availability but eliminating the attack surface. Monitor OpenClaw logs for suspicious download requests to non-whitelisted domains as a detective control.

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

The vulnerability resides in OpenClaw's marketplace plugin download feature, which implements HTTP client functionality (fetch() calls) without proper validation or restriction on request destinations. This classic SSRF vulnerability (CWE-918) occurs when user-supplied input to network request operations is not sanitized, allowing attackers to manipulate the target URL. The marketplace plugin likely processes download URLs from untrusted sources or user input without enforcing allowlists of permitted destinations, enabling requests to internal IP ranges (127.0.0.1, 10.0.0.0/8, 169.254.169.254), localhost services, or arbitrary external systems. The fetch() implementation likely respects HTTP redirects and handles credentials transparently, amplifying the attack surface to include credential theft from internal services.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 4.8 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:L/VA:N/SC:H/SI:L/SA:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
Present
Privileges Required
Low
User Interaction
Passive
Vulnerable system: Confidentiality
None
Vulnerable system: Integrity
Low
Vulnerable system: Availability
None
Subsequent system: Confidentiality
High
Subsequent system: Integrity
Low
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 4.8

DescriptionCVE.org

OpenClaw before 2026.3.31 contains a server-side request forgery vulnerability in the marketplace plugin download functionality that allows remote attackers to make arbitrary network requests. Attackers can exploit unguarded fetch() calls to access internal resources or interact with external services on behalf of the affected system.

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 89% exploitable
Social Media
1
Sightings
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

24
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +24
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Server-Side Request Forgery exploits applications that fetch remote resources based on user-supplied URLs.

Affected Products (CPE)CVE.org

cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
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