PT-2026-31763 · Openclaw · Openclaw

Karan Kurani · Published 2026-03-26 · Updated 2026-04-15 · CVE-2026-35627

Positive Technologies (AI Summary)

CVSS v4.0

8.6

High

Base vector

AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions OpenClaw versions prior to 2026.3.22

Description OpenClaw before version 2026.3.22 performs cryptographic and dispatch operations on inbound Nostr direct messages before validating sender and pairing policies. Attackers can trigger unauthorized pre-authentication computation by sending crafted direct messages, leading to denial of service through resource exhaustion.

Recommendations Update to version 2026.3.22 or later.

Fix

DoS

Incorrect Authorization

Weakness Enumeration

CWE-696

CWE-863

Related Identifiers

CVE-2026-35627

GHSA-2J53-2C28-G9V2

GHSA-65H8-27JH-Q8WV

Affected Products

Openclaw

References · 12

• https://github.com/openclaw/openclaw/commit/1ee9611079e81b9122f4bed01abb3d9f56206c77 · Patch
• https://github.com/openclaw/openclaw/security/advisories/GHSA-65h8-27jh-q8wv · Vendor Advisory
• https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-35627 · Security Note
• https://osv.dev/vulnerability/GHSA-65h8-27jh-q8wv · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-2j53-2c28-g9v2 · Vendor Advisory
• https://github.com/openclaw/openclaw · Note
• https://twitter.com/CVEnew/status/2042387953599787264 · Twitter Post
• https://twitter.com/infoflowcloud/status/2042390067000262694 · Twitter Post
• https://twitter.com/boom_wallet/status/2044385414492864783 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2042477289821073810 · Twitter Post
• https://vulncheck.com/advisories/openclaw-unauthenticated-cryptographic-work-in-nostr-inbound-dm-handling · Note