CVE-2026-10291
Deferred Deferred - Pending Action
Inefficient Regular Expression Complexity in Enderfga Claw-Orchestrator

Publication date: 2026-06-01

Last updated on: 2026-06-02

Assigner: VulDB

Description
A security vulnerability has been detected in Enderfga claw-orchestrator up to 3.7.0. The impacted element is the function validateRegex of the file claw-orchestrator/src/embedded-server.ts of the component Session Grep Endpoint. The manipulation of the argument body.pattern leads to inefficient regular expression complexity. The attack may be initiated remotely. Upgrading to version 3.7.1 is sufficient to resolve this issue. The identifier of the patch is 3f970a974c65a94555c25af9f2796f11315e4584. It is recommended to upgrade the affected component.
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Meta Information
Published
2026-06-01
Last Modified
2026-06-02
Generated
2026-06-22
AI Q&A
2026-06-02
EPSS Evaluated
2026-06-21
NVD
EUVD
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
enderfga claw-orchestrator to 3.7.0 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-1333 The product uses a regular expression with an inefficient, possibly exponential worst-case computational complexity that consumes excessive CPU cycles.
CWE-400 The product does not properly control the allocation and maintenance of a limited resource.
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Compliance Impact

The vulnerability in claw-orchestrator allows for a Regular Expression Denial of Service (ReDoS) attack, which can cause the server to become unresponsive by blocking the Node.js event loop. This denial of service could impact the availability of the service.

While the provided information does not explicitly mention compliance with standards such as GDPR or HIPAA, denial of service vulnerabilities can indirectly affect compliance by impacting system availability, which is a component of many security frameworks and regulations.

Specifically, regulations like GDPR require organizations to ensure the availability and resilience of processing systems and services. A successful ReDoS attack could violate these requirements by causing service outages.

However, there is no direct mention in the provided resources about this vulnerability causing data breaches or confidentiality/integrity issues, which are also critical for compliance.

Upgrading to version 3.7.1, which replaces the vulnerable regex engine with a safer one (RE2), mitigates the risk and helps maintain compliance by preventing denial of service.

Detection Guidance

This vulnerability can be detected by testing the /session/grep endpoint of the claw-orchestrator software with potentially malicious regex patterns that cause inefficient regular expression complexity and lead to denial of service.

A proof of concept involves sending a regex pattern such as (a+)+$ to the vulnerable endpoint and observing if the server hangs or the Node.js event loop is blocked.

For detection, you can use a command-line tool like curl to send a POST request with a malicious regex pattern to the /session/grep endpoint and monitor the server response or behavior.

  • curl -X POST http://<target-host>/session/grep -d '{"pattern":"(a+)+$"}' -H 'Content-Type: application/json'

If the server becomes unresponsive or the request takes an unusually long time to complete, it indicates the presence of the vulnerability.

Upgrading to version 3.7.1 or later mitigates this issue by replacing the regex engine with RE2, which prevents catastrophic backtracking.

Executive Summary

This vulnerability exists in the Enderfga claw-orchestrator software up to version 3.7.0, specifically in the function validateRegex within the Session Grep Endpoint component. The issue arises from the manipulation of the argument body.pattern, which leads to inefficient regular expression complexity. This means that an attacker can craft a pattern that causes the system to perform excessive processing, potentially degrading performance or causing denial of service.

The vulnerability can be exploited remotely, and upgrading to version 3.7.1 resolves the issue.

Impact Analysis

The vulnerability can lead to inefficient processing of regular expressions, which may cause performance degradation or denial of service in the affected system. Since the attack can be initiated remotely, an attacker could exploit this to disrupt the availability of the service running the claw-orchestrator component.

Mitigation Strategies

The recommended immediate step to mitigate this vulnerability is to upgrade the affected Enderfga claw-orchestrator component to version 3.7.1.

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