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CVE-2026-100556— OpenClaw before 2026.8.1 Authentication Bypass via Session Reset

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.

OpenClaw（npm 包 openclaw）版本 >= 2026.5.2 且 < 2026.8.1 存在一个与 WhatsApp 群组处理相关的授权错误漏洞。当群组发送者已被允许发送普通消息，但因不符合 commands.allowFrom 配置或所有者命令的授权而被拒绝执行命令时，该用户仍可通过执行 /new <model> 命令来重置共享的群组会话，并持久化配置提供商（provider）和模型（model）的覆盖设置。 这一漏洞使得被命令授权拒绝的群组成员能够选择由操作员已允许使用的特定提供商和模型，并在后

CVSS 6.3 · Medium EPSS 0.28% · P19

Affected Version Matrix 2

VendorProduct Version RangeStatus
OpenClaw OpenClaw 2026.5.2< 2026.8.1 affected
2026.8.1 unaffected
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I. Basic Information for CVE-2026-100556

Vulnerability Information
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Vulnerability Title
OpenClaw before 2026.8.1 Authentication Bypass via Session Reset
Source: CVE Program / CVE List V5
Vulnerability Description
OpenClaw (npm package openclaw) versions >= 2026.5.2 and < 2026.8.1 contain an incorrect authorization vulnerability in WhatsApp group handling. A group sender who is admitted for ordinary messages but denied by commands.allowFrom or owner command authorization can issue the /new <model> command to reset the shared group session and persist a provider and model override. This allows a command-denied group member to select a provider and model already permitted by the operator for subsequent turns in the shared group session, potentially changing provider routing, cost, data flow, or availability. It does not allow adding a new provider or host command execution. 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:L/I:L/A:L
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 2026.5.2 ~ 2026.8.1 -

II. Public POCs for CVE-2026-100556

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III. Intelligence Information for CVE-2026-100556

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Vendor Advisories for CVE-2026-100556 (1)

News Coverage for CVE-2026-100556 (1)

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-2026-100544 8.8 HIGH openclaw voice-call before 2026.8.1 Authorization Bypass
CVE-2026-100552 8.8 HIGH OpenClaw before 2026.8.1 Policy Bypass via Native Tools
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-2026-100585 8.0 HIGH OpenClaw before 2026.7.1 Authentication Bypass via MCP Channel
CVE-2026-100559 8.0 HIGH OpenClaw before 2026.8.1 Command Injection via Escaped Newlines
CVE-2026-100561 8.0 HIGH OpenClaw before 2026.8.1 Authentication Bypass via Exec Wrapper
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-2026-100556

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