CVE-2026-41346Network attack vector

Pairing denial via cross-account request-cap exhaustion

Published Apr 23, 2026 · Updated Apr 23, 2026

Denial of service in OpenClaw 2026.2.26 through versions before 2026.3.31 allows remote attackers to block new pairing challenges. The pairing store's pruneExcessRequests function sorts and truncates the shared channel request array without grouping entries by accountId. A multi-account channel and enough pending requests from other accounts are required; the result delays pairing or onboarding until a request is approved or expires.

CVSS severity6.3
Medium
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in OpenClaw 2026.2.26 through versions before 2026.3.31 allows remote attackers to block new pairing challenges. The pairing store's pruneExcessRequests function sorts and truncates the shared channel request array without grouping entries by accountId. A multi-account channel and enough pending requests from other accounts are required; the result delays pairing or onboarding until a request is approved or expires.

The record

CVE
CVE-2026-41346
Published
Apr 23, 2026
Updated
Apr 23, 2026
Vendor
OpenClaw Foundation
Product
OpenClaw
Classifications
CWE-799, T1499
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=2026.2.26 <2026.3.31

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OpenClaw Foundation · OpenClawversion=2026.2.26 <2026.3.31

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5.3VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
6.3VulnCheckCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA: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 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-799Improper Control of Interaction Frequency
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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