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VulnerabilityPublished

CVE-2026-41299: OpenClaw · Reliance on Untrusted Inputs in a Security Decision

Affects OpenClawSource GCVE Database

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Not known to be exploited · CVSS 7.1 High : upgrade to 2026.3.28 soon.

Data as of 12 Nov 2026, 01:19 UTC

CVSS 4.0 base score
7.1High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (VulnCheck)CVSS 4.07.1
CNA (VulnCheck)CVSS 3.17.1
Patch
Available – fixed in 2026.3.28
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 20 Apr 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 11 Nov 2026.

What to do

Upgrade OpenClaw to 2026.3.28.

Affected software

ProductAffectedFixed in
OpenClaw OpenClawAffected
  • <2026.3.28
Fixed in
  • 2026.3.28

AI-suggested

If you cannot patch yet, restrict access to operator clients and monitor for suspicious activity related to client metadata manipulation during WebSocket connections.

Description

OpenClaw versions before 2026.3.28 have an authorization bypass vulnerability in the chat.send gateway method. The flaw arises because ACP-only provenance fields are controlled by client metadata from the WebSocket handshake, which is self-declared and not verified against the actual authorization state. This allows authenticated operator clients to spoof ACP identity labels and inject reserved provenance fields intended only for the ACP bridge by manipulating client metadata during connection.

References

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