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CVE-2026-53824— Mattermost plugin for OpenClaw < 2026.4.24 - Slash Token Revocation Lag via Monitor Refresh Delay

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是OpenClaw团队开源的一个智能人工助理。 OpenClaw 2026.4.24之前版本存在会话机制问题漏洞，该漏洞源于令牌撤销机制问题，允许调用者使用已撤销的斜线令牌在监控刷新窗口期间继续执行命令，攻击者可利用此漏洞在令牌撤销后短暂执行未授权操作。

CVSS 6.5 · Medium EPSS 0.32% · P22

Possible ATT&CK Techniques 1 AI

T1136 · Create Account

Affected Version Matrix 2

VendorProduct Version RangeStatus
OpenClaw OpenClaw < 2026.4.24 affected
2026.4.24 unaffected
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I. Basic Information for CVE-2026-53824

Vulnerability Information
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Vulnerability Title
Mattermost plugin for OpenClaw < 2026.4.24 - Slash Token Revocation Lag via Monitor Refresh Delay
Source: CVE Program / CVE List V5
Vulnerability Description
OpenClaw before 2026.4.24 contains a token revocation vulnerability allowing callers with revoked slash tokens to continue executing commands during monitor refresh windows. Attackers can exploit stale token acceptance to invoke slash command behavior briefly after token revocation, potentially executing unauthorized actions depending on operator configuration.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
不充分的会话过期机制
Source: CVE Program / CVE List V5
Vulnerability Title
OpenClaw 会话机制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenClaw是OpenClaw团队开源的一个智能人工助理。 OpenClaw 2026.4.24之前版本存在会话机制问题漏洞，该漏洞源于令牌撤销机制问题，允许调用者使用已撤销的斜线令牌在监控刷新窗口期间继续执行命令，攻击者可利用此漏洞在令牌撤销后短暂执行未授权操作。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
OpenClaw OpenClaw 0 ~ 2026.4.24 -

II. Public POCs for CVE-2026-53824

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III. Intelligence Information for CVE-2026-53824

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Vendor Advisories for CVE-2026-53824 (2)

Same Patch Batch · OpenClaw · 2026-06-12 · 20 CVEs total

CVE-2026-53838 9.8 CRITICAL OpenClaw < 2026.5.27 - Node Pairing State Mutation via Reconnection
CVE-2026-53822 8.8 HIGH OpenClaw < 2026.5.18 - Command Argument Modification via Shell Wrapper Between Approval an
CVE-2026-53836 8.8 HIGH OpenClaw < 2026.5.12 - Allowlist Bypass via PowerShell Encoded-Command Aliases
CVE-2026-53821 8.8 HIGH OpenClaw < 2026.5.18 - Scope Elevation in trusted-proxy Control UI WebSocket
CVE-2026-53828 8.8 HIGH OpenClaw < 2026.5.6 - Native Command Authorization Bypass via Owner-Command Enforcement
CVE-2026-53831 8.3 HIGH OpenClaw < 2026.5.18 - Arbitrary File Read via Shell Expansion in system.run Safe-bin Allo
CVE-2026-53823 8.1 HIGH OpenClaw < 2026.5.3 - Privilege Escalation via Mutable Slack Display Names in allowFrom
CVE-2026-53829 8.0 HIGH OpenClaw < 2026.5.18 - Command Truncation in Exec Approval Display
CVE-2026-53833 7.7 HIGH QQBot for OpenClaw < 2026.4.29 - Authorization Bypass via QQBot Streaming Command
CVE-2026-53832 7.7 HIGH OpenClaw < 2026.5.18 - Identity Header Forgery via Trusted-Proxy Configuration
CVE-2026-53834 7.5 HIGH OpenClaw < 2026.4.27 - Authorization Bypass in QQBot Pre-dispatch Slash Commands
CVE-2026-53820 6.6 MEDIUM OpenClaw < 2026.5.12 - Exec Denylist Bypass in Bundle MCP Loopback Session Spawn
CVE-2026-53827 6.5 MEDIUM OpenClaw < 2026.5.2 - Credential Exposure via Model-Supplied Loopback URLs in message.acti
CVE-2026-53825 6.5 MEDIUM OpenClaw < 2026.4.7 - Arbitrary Local File Read via memory-wiki Ingest with operator.write
CVE-2026-53830 6.5 MEDIUM OpenClaw < 2026.4.22 - Webhook Secret Revocation Bypass via secrets.reload
CVE-2026-53839 6.5 MEDIUM OpenClaw < 2026.5.7 - Hostname Prefix Matching Bypass in Trusted Retry Endpoint Validation
CVE-2026-53826 4.3 MEDIUM OpenClaw < 2026.4.26 - Information Disclosure via Sandboxed Session Spawn
CVE-2026-53835 4.3 MEDIUM OpenClaw < 2026.5.6 - Config-Write Enforcement Bypass in Feishu Dynamic-Agent Bindings
CVE-2026-53837 3.7 LOW OpenClaw < 2026.5.6 - Missing Channel Type Validation in Mattermost Event Handlers

IV. Related Vulnerabilities

Same product: OpenClaw
Same vendor: OpenClaw
Same weakness: CWE-613

V. Comments for CVE-2026-53824

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