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.
Published: 2026-04-09
Score: 6.9 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Denial of Service via Resource Exhaustion
Action: Patch
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-65h8-27jh-q8wv OpenClaw: Nostr inbound DMs could trigger unauthenticated crypto work before sender policy enforcement
History

Fri, 10 Apr 2026 13:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 09 Apr 2026 21:45:00 +0000

Type Values Removed Values Added
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.
Title OpenClaw < 2026.3.22 - Unauthenticated Cryptographic Work in Nostr Inbound DM Handling
First Time appeared Openclaw
Openclaw openclaw
Weaknesses CWE-696
CPEs cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
Vendors & Products Openclaw
Openclaw openclaw
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N'}


Subscriptions

Openclaw Openclaw
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-04-10T12:32:16.991Z

Reserved: 2026-04-04T12:29:42.738Z

Link: CVE-2026-35627

cve-icon Vulnrichment

Updated: 2026-04-10T12:32:08.592Z

cve-icon NVD

Status : Analyzed

Published: 2026-04-09T22:16:31.240

Modified: 2026-04-16T20:52:44.313

Link: CVE-2026-35627

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-10T09:28:35Z

Weaknesses