Cyber Resilience

CVE-2026-41340

MediumPublic PoC

Published: 23 April 2026

Published
23 April 2026
Modified
28 April 2026
KEV Added
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Patch
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CVSS Score v4 6.3 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/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 0.0011 29.6th percentile
Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-41340 is a medium-severity Incomplete Internal State Distinction (CWE-372) vulnerability in Openclaw Openclaw. Its CVSS base score is 6.3 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Valid Accounts (T1078); ranked at the 29.6th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

OpenClaw before 2026.3.31 contains an authentication boundary vulnerability where Telegram legacy allowFrom migration incorrectly fans default-account trust into all named accounts. Attackers can exploit this trust propagation to bypass authentication controls and gain unauthorized access to named accounts.

CWE(s)
CWE-372

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1078 Valid Accounts Stealth
Adversaries may obtain and abuse credentials of existing accounts as a means of gaining Initial Access, Persistence, Privilege Escalation, or Defense Evasion.
attack.mitre.org →
Why these techniques?

Authentication bypass flaw directly enables unauthorized access to valid named accounts via trust propagation.

Confidence: MEDIUM · MITRE ATT&CK Enterprise v18.1

Affected Assets

openclaw
openclaw
≤ 2026.3.31

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References