CVE-2026-27524Network attack vector

Command gate bypass via prototype-reserved debug overrides

Published Mar 18, 2026 · Updated Mar 18, 2026

Prototype pollution in OpenClaw before 2026.2.21 allows remote authenticated users to bypass restricted command gates via /debug set. The runtime override deep merge stores nested proto, constructor, and prototype keys, letting inherited true values satisfy command flags. Exploitation requires authorized access to disabled-by-default /debug set; changes affect only in-memory overrides and clear on restart or reset.

CVSS severity2.3
Low
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Prototype pollution in OpenClaw before 2026.2.21 allows remote authenticated users to bypass restricted command gates via /debug set. The runtime override deep merge stores nested proto, constructor, and prototype keys, letting inherited true values satisfy command flags. Exploitation requires authorized access to disabled-by-default /debug set; changes affect only in-memory overrides and clear on restart or reset.

The record

CVE
CVE-2026-27524
Published
Mar 18, 2026
Updated
Mar 18, 2026
Vendor
OpenClaw Foundation
Product
OpenClaw
Classifications
CWE-1321, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 18, 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 <2026.2.21

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OpenClaw Foundation · OpenClawversion=0 <2026.2.21

Published CVSS scores

2.3VulnCheckCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
4.3VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1321Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
T1059Command and Scripting Interpreter

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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