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CVE-2026-100531— openclaw Slack before 2026.8.1 Authorization Bypass

Quick assessment

Affected
openclaw slack
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.

2026.8.1 版本之前的 @openclaw/slack npm 包在其 Slack 下载文件处理程序中存在一个授权缺陷：当文件缺乏用于证明其属于所请求对话的共享元数据时，对话授权检查将失效（即未能正确拒绝访问）。因此，已被限制只能访问单个对话的已认证用户，如果知道或获取了某个文件的标识符，便可以从该对话范围之外下载该文件的内容，从而导致数据泄露至配置的对话边界之外。该漏洞不允许列出任意的 Slack 文件，也不会绕过 Slack 自身的身份验证机制。该问题已在 2026.8.1 版本中得到修复。

CVSS 6.5 · Medium EPSS 0.33% · P23
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I. Basic Information for CVE-2026-100531

Vulnerability Information
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Vulnerability Title
openclaw Slack before 2026.8.1 Authorization Bypass
Source: CVE Program / CVE List V5
Vulnerability Description
The @openclaw/slack npm package before 2026.8.1 contains an authorization flaw in its Slack download-file handler: when a file lacks the share metadata used to prove it belongs to the requested conversation, the conversation-authorization check fails open. An authenticated caller restricted to a single conversation who knows or obtains a file identifier can therefore download file contents from outside that conversation's scope, disclosing data across configured conversation boundaries. The issue does not allow listing arbitrary Slack files and does not bypass Slack authentication itself. 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
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
openclaw slack 0 ~ 2026.8.1 -

II. Public POCs for CVE-2026-100531

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III. Intelligence Information for CVE-2026-100531

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Vendor Advisories for CVE-2026-100531 (1)

Other References for CVE-2026-100531 (1)

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

CVE-2026-100580 8.8 HIGH OpenClaw before 2026.7.1 Remote Code Execution via cron tool
CVE-2026-100575 8.8 HIGH OpenClaw Slack before 2026.8.1 Authentication Bypass via Group DM
CVE-2026-100544 8.8 HIGH openclaw voice-call before 2026.8.1 Authorization Bypass
CVE-2026-100596 8.8 HIGH OpenClaw before 2026.7.1 Authorization Bypass via MCP Configuration
CVE-2026-100599 8.8 HIGH OpenClaw 2026.5.1 before 2026.7.1 Remote Code Execution via googlemeet.chrome
CVE-2026-100587 8.8 HIGH OpenClaw before 2026.7.1 Authorization Bypass via Codex Install
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-2026-100589 8.3 HIGH OpenClaw before 2026.7.1 Sandbox Bypass via Browser Node
CVE-2026-100588 8.3 HIGH OpenClaw before 2026.7.1 Authentication Bypass via node.invoke
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-2026-100567 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 → →

IV. Related Vulnerabilities

Same product: slack
Same vendor: openclaw
Same weakness: CWE-639

V. Comments for CVE-2026-100531

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