CVE-2026-41911Network attack vector

Authenticated file disclosure via unchecked upload paths

Published Apr 28, 2026 · Updated Apr 28, 2026

Path traversal in OpenClaw before 2026.4.8 allows remote authenticated users to read arbitrary host files through Feishu docx uploads. The Feishu docx upload_file and upload_image handlers pass caller-supplied paths to upload processing without enforcing the workspace or localRoots boundary. A caller with access to the Feishu upload tools can exfiltrate any file readable by the OpenClaw process; integrity and availability are unaffected.

CVSS severity6.0
Medium
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in OpenClaw before 2026.4.8 allows remote authenticated users to read arbitrary host files through Feishu docx uploads. The Feishu docx upload_file and upload_image handlers pass caller-supplied paths to upload processing without enforcing the workspace or localRoots boundary. A caller with access to the Feishu upload tools can exfiltrate any file readable by the OpenClaw process; integrity and availability are unaffected.

The record

CVE
CVE-2026-41911
Published
Apr 28, 2026
Updated
Apr 28, 2026
Vendor
OpenClaw Foundation
Product
OpenClaw
Classifications
CWE-22, T1005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 28, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 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 <2026.4.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OpenClaw Foundation · OpenClawversion=0 <2026.4.8

Published CVSS scores

6.0VulnCheckCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
6.5VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/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-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1005Data from Local System

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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