CVE-2026-100543
Received Received - Intake

Deterministic Hashes in OpenClaw Configuration Leak Password

Publication date: 2026-09-26

Last updated on: 2026-09-26

Assigner: VulnCheck

Description
OpenClaw (npm package openclaw) before 2026.8.1 could include deterministic hashes computed over the original, unredacted configuration in redacted configuration responses. When the Gateway password had low entropy and the remaining configuration values were reconstructable, these hashes acted as offline password verifiers: a caller able to obtain the redacted configuration (for example via config.get) could test password candidates offline without going through the rate-limited Gateway authentication path. Recovering the password could grant the documented shared-secret operator authority. Secret references were not affected in the same way. The issue is fixed in 2026.8.1.

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Meta Information

Published
2026-09-26
Last Modified
2026-09-26
Generated
2026-09-26
AI Q&A
2026-09-26
EPSS Evaluated
N/A
NVD
CVE-2026-100543
EUVD
EUVD-2026-87507

Affected Vendors & Products

Currently, no data is known.

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-200 The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

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Executive Summary

OpenClaw before version 2026.8.1 includes deterministic hashes of the original unredacted configuration in redacted configuration responses. When the Gateway password has low entropy and other configuration values can be reconstructed, these hashes act as offline password verifiers. An attacker who obtains the redacted configuration can test password candidates offline without triggering rate-limited Gateway authentication.

Detection Guidance

To detect this vulnerability, check if your OpenClaw version is below 2026.8.1. Use commands like 'npm list openclaw' or 'cat package.json' to verify the installed version. If the version is outdated, the system is vulnerable.

Impact Analysis

An attacker could recover the Gateway password, granting shared-secret operator authority. This could lead to unauthorized access, data breaches, or system compromise. The impact depends on the privileges of the compromised account and the sensitivity of the exposed data.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating confidentiality requirements in GDPR and HIPAA. Organizations may face compliance penalties, legal liabilities, and reputational damage if exploited.

Mitigation Strategies

Upgrade OpenClaw to version 2026.8.1 or later immediately. Use high-entropy Gateway tokens or passwords. Prefer secret references over inline low-entropy values. Restrict config.get access to trusted operators only.

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