CVE-2026-35627
OpenClaw < 2026.3.22 - Unauthenticated Cryptographic Work in Nostr Inbound DM Handling
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-696 |
| Vendor | openclaw |
| Product | openclaw |
| Published | Apr 9, 2026 |
| Last Updated | Apr 10, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
Low
Affected Versions
OpenClaw / OpenClaw
0 < 2026.3.22
References
github.com: https://github.com/openclaw/openclaw/security/advisories/GHSA-65h8-27jh-q8wv github.com: https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87 github.com: https://github.com/openclaw/openclaw/commit/1ee9611079e81b9122f4bed01abb3d9f56206c77 vulncheck.com: https://www.vulncheck.com/advisories/openclaw-unauthenticated-cryptographic-work-in-nostr-inbound-dm-handling
Credits
🔍 Karan Kurani (@kuranikaran)