# CVE-2026-35627

## Summary

- **CVE ID:** CVE-2026-35627
- **Severity:** MEDIUM
- **CVSS Score:** 6.9 (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)
- **CWE:** CWE-696
- **Published:** Apr 9, 2026
- **Last Modified:** Jun 23, 2026

## 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.

## Affected Products

- OpenClaw — OpenClaw (0)
- OpenClaw — OpenClaw (2026.3.22)

## References

- [CNA](https://github.com/openclaw/openclaw/security/advisories/GHSA-65h8-27jh-q8wv)
- [CNA](https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87)
- [CNA](https://github.com/openclaw/openclaw/commit/1ee9611079e81b9122f4bed01abb3d9f56206c77)
- [CNA](https://www.vulncheck.com/advisories/openclaw-unauthenticated-cryptographic-work-in-nostr-inbound-dm-handling)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.45%
- **EPSS Percentile:** 38.0

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._