Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-100538— OpenClaw before 2026.8.1 Local File Read via Outbound Attachments

Quick assessment

Affected
OpenClaw OpenClaw
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 OpenClaw（npm 包 'openclaw'）2026.8.1 版本之前，在处理出站附件时，未应用来自发送方的全局或按代理（per-agent）的“toolsBySender”策略。即使某个发送方已被明确禁止使用文件系统读取工具，它仍然可以通过最终响应中的媒体指令（final-response media directive）或消息附件，导致受知的本地文件被读取并返回，从而将本地文件内容泄露给已获授权的请求方——而该请求方的代理轮次中并未包含读取工具。 利用此漏洞需要掌握或推导出有效的宿主路径，并存在一个

CVSS 6.5 · Medium EPSS 0.26% · P16

Affected Version Matrix 2

VendorProduct Version RangeStatus
OpenClaw OpenClaw < 2026.8.1 affected
2026.8.1 unaffected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-100538

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
OpenClaw before 2026.8.1 Local File Read via Outbound Attachments
Source: CVE Program / CVE List V5
Vulnerability Description
OpenClaw (npm package 'openclaw') before 2026.8.1 does not apply the originating sender's global or per-agent toolsBySender policy when handling outbound attachments. A sender that has been explicitly denied filesystem read tools can still cause a known local file to be read and returned via a final-response media directive or a message attachment, disclosing local file contents to an admitted requester whose agent turn did not include the read tool. Exploitation requires knowledge or derivation of a useful host path and a delivery flow that accepts local attachments. The issue is fixed in version 2026.8.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
OpenClaw OpenClaw 0 ~ 2026.8.1 -

II. Public POCs for CVE-2026-100538

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-100538

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-100538 (2)

Same Patch Batch · OpenClaw · 2026-09-26 · 79 CVEs total

CVE-2026-100575 8.8 HIGH OpenClaw Slack before 2026.8.1 Authentication Bypass via Group DM
CVE-2026-100599 8.8 HIGH OpenClaw 2026.5.1 before 2026.7.1 Remote Code Execution via googlemeet.chrome
CVE-2026-100580 8.8 HIGH OpenClaw before 2026.7.1 Remote Code Execution via cron tool
CVE-2026-100586 8.8 HIGH OpenClaw Codex before 2026.7.1 Authorization Bypass via Bind
CVE-2026-100552 8.8 HIGH OpenClaw before 2026.8.1 Policy Bypass via Native Tools
CVE-2026-100544 8.8 HIGH openclaw voice-call before 2026.8.1 Authorization Bypass
CVE-2026-100587 8.8 HIGH OpenClaw before 2026.7.1 Authorization Bypass via Codex Install
CVE-2026-100596 8.8 HIGH OpenClaw before 2026.7.1 Authorization Bypass via MCP Configuration
CVE-2026-100551 8.3 HIGH OpenClaw iOS Control UI TLS Pin Enforcement Bypass
CVE-2026-100568 8.3 HIGH OpenClaw before 2026.8.1 Unauthorized Command Job Access
CVE-2026-100557 8.3 HIGH OpenClaw before 2026.8.1 Authorization Bypass via Skill Tool Dispatch
CVE-2026-100588 8.3 HIGH OpenClaw before 2026.7.1 Authentication Bypass via node.invoke
CVE-2026-100589 8.3 HIGH OpenClaw before 2026.7.1 Sandbox Bypass via Browser Node
CVE-2026-100567 8.2 HIGH OpenClaw before 2026.8.1 DNS Rebinding via CDP Hostname
CVE-2026-100532 8.1 HIGH openclaw WhatsApp before 2026.8.1 Authentication Bypass
CVE-2026-100561 8.0 HIGH OpenClaw before 2026.8.1 Authentication Bypass via Exec Wrapper
CVE-2026-100559 8.0 HIGH OpenClaw before 2026.8.1 Command Injection via Escaped Newlines
CVE-2026-100585 8.0 HIGH OpenClaw before 2026.7.1 Authentication Bypass via MCP Channel
CVE-2026-100570 7.8 HIGH OpenClaw before 2026.8.1 Remote Code Execution via CLOUDSDK_PYTHON_ARGS
CVE-2026-100597 7.8 HIGH OpenClaw before 2026.7.1 Path Traversal via Filesystem Race

Showing top 20 of 79 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: OpenClaw
Same vendor: OpenClaw
Same weakness: CWE-863

V. Comments for CVE-2026-100538

No comments yet

Leave a comment