CVE-2026-35627 | THREATINT

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 Reserved 2026-04-04 | Published 2026-04-09 | Updated 2026-04-10 | Assigner VulnCheck

MEDIUM: 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N

MEDIUM: 6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

Problem types

CWE-696: Incorrect Behavior Order

Product status

Default status

unaffected

Any version before 2026.3.22

affected

2026.3.22 (semver)

unaffected

Credits

Karan Kurani (@kuranikaran) reporter

References

github.com/...enclaw/security/advisories/GHSA-65h8-27jh-q8wv (GitHub Security Advisory (GHSA-65h8-27jh-q8wv)) third-party-advisory

github.com/...ommit/630f1479c44f78484dfa21bb407cbe6f171dac87 (Patch Commit #1) patch

github.com/...ommit/1ee9611079e81b9122f4bed01abb3d9f56206c77 (Patch Commit #2) patch

www.vulncheck.com/...aphic-work-in-nostr-inbound-dm-handling (VulnCheck Advisory: OpenClaw < 2026.3.22 - Unauthenticated Cryptographic Work in Nostr Inbound DM Handling) third-party-advisory

cve.org (CVE-2026-35627)

nvd.nist.gov (CVE-2026-35627)

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