CVE-2026-32045Network attack vector

Authentication bypass via overbroad Tailscale header trust

Published Mar 21, 2026 · Updated Mar 21, 2026

Authentication bypass in OpenClaw before 2026.2.21 allows remote attackers on trusted networks to access HTTP gateway routes. The gateway authorization path accepts verified Tailscale Serve identity headers at generic HTTP authentication call sites instead of limiting tokenless header authentication to Control UI WebSocket connections. The flaw is reachable only when Tailscale Serve header authentication is enabled and downgrades routes configured to require a token or password to tokenless access.

CVSS severity8.2
High
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in OpenClaw before 2026.2.21 allows remote attackers on trusted networks to access HTTP gateway routes. The gateway authorization path accepts verified Tailscale Serve identity headers at generic HTTP authentication call sites instead of limiting tokenless header authentication to Control UI WebSocket connections. The flaw is reachable only when Tailscale Serve header authentication is enabled and downgrades routes configured to require a token or password to tokenless access.

The record

CVE
CVE-2026-32045
Published
Mar 21, 2026
Updated
Mar 21, 2026
Vendor
OpenClaw Foundation
Product
OpenClaw
Classifications
CWE-290, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 21, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 21, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2026.2.21

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OpenClaw Foundation · OpenClawversion=0 <2026.2.21

Published CVSS scores

8.2VulnCheckCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
9.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
5.9VulnCheckCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-290Authentication Bypass by Spoofing
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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