Cyber Resilience

CVE-2026-22174

Access Control in Openclaw ≤ 2026.2.22

Public PoCAccess Control
Published
18 March 2026
Modified
25 March 2026
Patch / advisory
CVSS Score v4 5.9
Click a component to see what it means
Raw vectorCVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS Score 0.0013 3th percentile
Risk Priority 35 floored blend · peak EPSS

Summary

CVE-2026-22174 is a medium-severity Missing Authentication for Critical Function (CWE-306) vulnerability in Openclaw Openclaw. Its CVSS base score is 5.9 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Steal Application Access Token (T1528); ranked at the 3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified map to SC-23 (Session Authenticity) and SC-8 (Transmission Confidentiality and Integrity) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

OpenClaw versions prior to 2026.2.22 inject the x-OpenClaw-relay-token header into Chrome CDP probe traffic on loopback interfaces, allowing local processes to capture the Gateway authentication token. An attacker controlling a loopback port can intercept CDP reachability probes to the /json/version…

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endpoint and reuse the leaked token as Gateway bearer authentication.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1528 Steal Application Access Token Credential Access
Adversaries can steal application access tokens as a means of acquiring credentials to access remote systems and resources.
T1550.001 Application Access Token Lateral Movement
Adversaries may use stolen application access tokens to bypass the typical authentication process and access restricted accounts, information, or services on remote systems.
Why these techniques?

Vulnerability directly leaks Gateway auth token into observable loopback CDP traffic, enabling local capture/reuse of application access token.

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

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CVE-2026-28472Same product: Openclaw Openclaw
CVE-2026-28485Same product: Openclaw Openclaw
CVE-2026-28458Same product: Openclaw Openclaw
CVE-2026-28450Same product: Openclaw Openclaw
CVE-2026-29613Same product: Openclaw Openclaw
CVE-2026-32896Same product: Openclaw Openclaw

Affected Assets

openclaw
openclaw
≤ 2026.2.22

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)
  • SC-8 Transmission Confidentiality and Integrity
  • SC-23 Session Authenticity
  • AC-3 Access Enforcement
Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)
  • 6 hardening rules · 3 OS baselines
Validate
Prove the fix (OWASP ASVS)
  • V6.2.3
  • V6.4.4
  • V10.4.16
  • V12.1.3

Mitigating Controls (NIST 800-53 r5) AI

prevent

Directly prevents token leakage by requiring confidentiality/integrity protection for all transmissions carrying the x-OpenClaw-relay-token, including loopback CDP probes.

prevent

Ensures session authenticity so that a captured bearer token from /json/version probes cannot be successfully reused for Gateway authentication.

prevent

Enforces that authentication tokens are only accepted from authorized, non-interceptable channels rather than any local process presenting the header.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.AA-03 full match
prevents

Directly requires authentication of users/services/hardware, which eliminates missing authentication for critical functions.

PR.AA-01 partial match
prevents

Managing identities and credentials is a prerequisite for authentication but does not itself enforce it on critical functions.

PR.AA-05 partial match
prevents

Defining and enforcing authorizations assumes prior authentication and therefore only partially mitigates the absence of authentication.

PR.IR-01 partial match
prevents

Protecting networks from unauthorized access can be undermined by missing authentication but does not address the root authentication gap.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

prevents

The control explicitly calls for authentication before any critical function is reached, eliminating the possibility of bypassing authentication for high-value operations.

prevents

Mandating authentication requirements for critical functions at the requirements-gathering stage ensures that essential operations are not left unprotected by missing login or verification mechanisms.

mitigates

Mandating authentication for network services and critical functions stops attackers from invoking sensitive operations without credentials, closing gaps where authentication is absent for important capabilities.

prevents

Security engineering principles insist on authentication and authorization for every critical function, eliminating entry points that lack any access control mechanism.

none

Requiring strong authentication and access-privilege enablement for remote connections ensures that critical functions cannot be invoked without proper verification, closing a gap that would otherwise allow unauthenticated use.

none

Mandatory use of access cards, biometrics, or two-factor authentication ensures that critical physical areas cannot be entered without proper authentication.

References