CVE-2026-53806Network attack vector

Command execution via combined shell option parsing

Published Jun 11, 2026 · Updated Jun 11, 2026

Shell option parsing in OpenClaw before 2026.5.12 allows remote authenticated users to execute unauthorized shell commands. Approval-time and execution-time parsing interpret combined POSIX shell flags differently, allowing inline shell content to bypass exec allowlist revalidation. The affected execution feature must be enabled and reachable by lower-trust input; trusted operators, installed plugins, and intentional local execution remain within the product's trust model.

CVSS severity7.7
High
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

Shell option parsing in OpenClaw before 2026.5.12 allows remote authenticated users to execute unauthorized shell commands. Approval-time and execution-time parsing interpret combined POSIX shell flags differently, allowing inline shell content to bypass exec allowlist revalidation. The affected execution feature must be enabled and reachable by lower-trust input; trusted operators, installed plugins, and intentional local execution remain within the product's trust model.

The record

CVE
CVE-2026-53806
Published
Jun 11, 2026
Updated
Jun 11, 2026
Vendor
OpenClaw Foundation
Product
OpenClaw
Classifications
CWE-367, T1059.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 11, 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 <2026.5.12

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OpenClaw Foundation · OpenClawversion=0 <2026.5.12

Published CVSS scores

8.8GitLab Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.7VulnCheckCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/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 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-367Time-of-check Time-of-use (TOCTOU) Race Condition
T1059.004Unix Shell

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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