CVE-2026-35627 Details
Description
OpenClaw before 2026.3.22 performs cryptographic and dispatch operations on inbound Nostr direct messages before enforcing sender and pairing policy validation. Attackers can trigger unauthorized pre-authentication computation by sending crafted DM messages, enabling denial of service through resource exhaustion.
A denial-of-service vulnerability has been identified in OpenClaw versions prior to 2026.3.22. The issue arises because the application processes cryptographic and dispatch operations on incoming Nostr direct messages before validating the sender and pairing policies. This flaw allows attackers to send crafted direct messages that trigger unauthorized pre-authentication computations, leading to resource exhaustion and potential service disruption.
Users can upgrade to OpenClaw version 2026.3.22 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 10, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-696 | Incorrect Behavior Order | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| openclaw openclaw | < 2026.3.22 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 16, 2026 | Initial Analysis | [email protected] |
| Apr 9, 2026 | New CVE Received | [email protected] |