CVE-2026-41340Network attack vector

Authentication bypass via overbroad Telegram trust migration

Published Apr 23, 2026 · Updated Apr 23, 2026

Authentication bypass in OpenClaw before 2026.3.31 allows remote attackers to access named Telegram accounts through migrated trust. The state migration in src/infra/state-migrations.ts copies a legacy Telegram allowFrom store to every named account instead of only the resolved default account. Exploitation requires a legacy allowFrom store, multiple named Telegram accounts, and an attacker identity already trusted by the default account; access is limited to the exposed named-account bot surface.

CVSS severity6.3
Medium
EPSS probability0.28%
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 2026.3.31 allows remote attackers to access named Telegram accounts through migrated trust. The state migration in src/infra/state-migrations.ts copies a legacy Telegram allowFrom store to every named account instead of only the resolved default account. Exploitation requires a legacy allowFrom store, multiple named Telegram accounts, and an attacker identity already trusted by the default account; access is limited to the exposed named-account bot surface.

The record

CVE
CVE-2026-41340
Published
Apr 23, 2026
Updated
Apr 23, 2026
Vendor
OpenClaw Foundation
Product
OpenClaw
Classifications
CWE-372, T1078
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 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 <2026.3.31

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OpenClaw Foundation · OpenClawversion=0 <2026.3.31

Published CVSS scores

6.3VulnCheckCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
6.5VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-372Incomplete Internal State Distinction
T1078Valid Accounts

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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