Vulnerability in Openclaw
CVE-2026-41301
OpenClaw versions 2026.3.22 before 2026.3.31 contain a signature verification bypass vulnerability in the Nostr DM ingress path that allows pairing challenges to be issued before event signature validation. An unauthenticated remote attacker can send forged direct messages to create pending pairing entries and trigger pairing-reply attempts, consuming shared pairing capacity and triggering bounded relay and logging work on the Nostr channel.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.004 (34.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 34.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.002
Affected products
- Openclaw — versions 2026.3.22, 2026.3.31
Weakness classification (CWE)
References
- github.com/openclaw/openclaw/security/advisories/GHSA-h43v-27wg-5mf9 (vendor-advisory, Vendor Advisory)
- github.com/openclaw/openclaw/commit/4ee742174f36b5445703e3b1ef2fbd6ae6700fa4 (Patch, patch)
- www.vulncheck.com/advisories/openclaw-forged-nostr-dm-pairing-state-creation-vi… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-41301?
- CVE-2026-41301 is a medium-severity vulnerability in Openclaw, classified under Improper Verification of Cryptographic Signature. CVSS score: 5.3/10. Published 2026-04-21.
- How severe is CVE-2026-41301?
- Medium severity. CVSS v3 base score is 5.3 out of 10.