CVE-2026-31993Network attack vector

Authenticated command execution via incomplete shell-chain validation

Published Mar 19, 2026 · Updated Mar 19, 2026

Allowlist bypass in OpenClaw before 2026.2.22 allows remote authenticated users to execute commands on paired macOS beta nodes. Exec approval resolution inspects an incomplete shell-chain command view instead of resolving every segment and failing closed on unsafe substitution parsing. Reachability requires operator.write, a paired macOS beta node, and exec approvals configured with security=allowlist and ask=on-miss; default installs are unaffected.

CVSS severity5.6
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Allowlist bypass in OpenClaw before 2026.2.22 allows remote authenticated users to execute commands on paired macOS beta nodes. Exec approval resolution inspects an incomplete shell-chain command view instead of resolving every segment and failing closed on unsafe substitution parsing. Reachability requires operator.write, a paired macOS beta node, and exec approvals configured with security=allowlist and ask=on-miss; default installs are unaffected.

The record

CVE
CVE-2026-31993
Published
Mar 19, 2026
Updated
Mar 19, 2026
Vendor
OpenClaw Foundation
Product
OpenClaw
Classifications
CWE-184, CWE-285, T1059.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 19, 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 <2026.2.22

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OpenClaw Foundation · OpenClawversion=0 <2026.2.22

Published CVSS scores

6.4NIST NVDCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
4.8VulnCheckCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:L
5.6VulnCheckCVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:A/VC:N/VI:H/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 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-184Incomplete List of Disallowed Inputs
CWE-285Improper Authorization
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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