Cyber Resilience

CVE-2026-41916

Openclaw ≤ 2026.4.8

Public PoC
Published
28 April 2026
Modified
30 April 2026
Patch / advisory
View advisory
CVSS Score v4 2.3
Click a component to see what it means
Raw vectorCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/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 0.0022 12th percentile
Risk Priority 15 floored blend · peak EPSS

Summary

CVE-2026-41916 is a low-severity Insufficient Session Expiration (CWE-613) vulnerability in Openclaw Openclaw. Its CVSS base score is 2.3 (Low).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 12th 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 AC-12 (Session Termination) and AC-3 (Access Enforcement) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

A07:2025 Authentication Failures

EU & UK References

Vulnerability Data

OpenClaw before 2026.4.8 contains an authentication state management vulnerability where the resolvedAuth closure becomes stale after configuration reload. Newly accepted gateway connections continue using outdated resolved auth state, allowing attackers to bypass authentication controls through config reload operations.

CWE(s)
CWE-613

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1133 External Remote Services Persistence
Adversaries may leverage external-facing remote services to initially access and/or persist within a network.
attack.mitre.org →
Why these techniques?

Auth bypass via stale state after reload enables exploitation of public-facing gateway services and external remote access.

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

CVEs Like This One

CVE-2026-42421Same product: Openclaw Openclaw
CVE-2026-34503Same product: Openclaw Openclaw
CVE-2026-53843Same product: Openclaw Openclaw
CVE-2026-41356Same product: Openclaw Openclaw
CVE-2026-53824Same product: Openclaw Openclaw
CVE-2026-53830Same product: Openclaw Openclaw
CVE-2026-32001Same product: Openclaw Openclaw
CVE-2026-32021Same product: Openclaw Openclaw
CVE-2026-43576Same product: Openclaw Openclaw
CVE-2026-35637Same product: Openclaw Openclaw

Affected Assets

openclaw
openclaw
≤ 2026.4.8

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)
  • AC-3 Access Enforcement
  • AC-12 Session Termination
  • IA-11 Re-authentication
Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)

—

Mitigating Controls (NIST 800-53 r5) AI

AC-3 Access Enforcement good match
prevent

Directly enforces current authentication decisions on every gateway connection, preventing use of stale resolvedAuth state after reload.

AC-12 Session Termination good match
prevent

Requires immediate termination of existing sessions and re-establishment with fresh auth state whenever configuration (and thus auth policy) changes.

IA-11 Re-authentication partial match
prevent

Forces re-authentication of connections when security-relevant events such as configuration reload occur, invalidating any stale closure.

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-01 mostly match
prevents

Credential lifecycle management directly includes enforcing session expiration to prevent reuse.

PR.AA-05 mostly match
prevents

Authorization policy enforcement and review covers terminating stale sessions to limit access scope.

PR.AA-03 partial match
prevents

Authentication mechanisms can incorporate session timeout checks but do not inherently address expiration policy.

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.

A.8.5 Secure authentication none match
none

Automatic termination of inactive sessions and limits on connection duration shrink the window during which a hijacked or unattended authenticated session can be exploited.

References