Authentication Bypass in OpenClaw Affects Legacy Callback Handling
CVE-2026-35664

6.9MEDIUM

Key Information:

Vendor

Openclaw

Status
Openclaw
Vendor
CVE Published:
10 April 2026

What is CVE-2026-35664?

OpenClaw prior to version 2026.3.25 is susceptible to an authentication bypass vulnerability that exists in the raw card send surface. This flaw enables unpaired recipients to mint legacy callback payloads, allowing attackers to send raw card commands that circumvent DM pairing restrictions. As a result, malicious actors can reach callback handling processes without the necessary authorization, potentially compromising system integrity and security.

Affected Version(s)

OpenClaw 0 < 2026.3.25

OpenClaw 2026.3.25

References

https://github.com/openclaw/openclaw/security/advisories/...
third-party-advisory
https://github.com/openclaw/openclaw/commit/81c45976db532...
patch
https://www.vulncheck.com/advisories/openclaw-dm-pairing-...
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Peng Zhou (@zpbrent)
.