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CVE-2026-42435— OpenClaw 2026.2.22 < 2026.4.12 - Shell-Wrapper Detection Bypass via Environment Variable Assignment Injection

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开源的一个智能人工助理。 OpenClaw 2026.2.22版本至2026.4.12之前版本存在安全漏洞，该漏洞源于shell包装器检测不足，可能导致攻击者在argv级别注入环境变量赋值，操纵高风险shell变量。

CVSS 8.8 · High EPSS 0.74% · P53

Affected Version Matrix 2

VendorProduct Version RangeStatus
OpenClaw OpenClaw 2026.2.22< 2026.4.12 affected
2026.4.12 unaffected
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I. Basic Information for CVE-2026-42435

Vulnerability Information
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Vulnerability Title
OpenClaw 2026.2.22 < 2026.4.12 - Shell-Wrapper Detection Bypass via Environment Variable Assignment Injection
Source: CVE Program / CVE List V5
Vulnerability Description
OpenClaw versions from 2026.2.22 before 2026.4.12 contain an insufficient shell-wrapper detection vulnerability allowing attackers to inject environment variable assignments at the argv level. Attackers can bypass exec preflight handling to manipulate high-risk shell variables like SHELLOPTS and PS4, affecting execution semantics and security controls.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不完整的黑名单
Source: CVE Program / CVE List V5
Vulnerability Title
OpenClaw 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenClaw是OpenClaw开源的一个智能人工助理。 OpenClaw 2026.2.22版本至2026.4.12之前版本存在安全漏洞，该漏洞源于shell包装器检测不足，可能导致攻击者在argv级别注入环境变量赋值，操纵高风险shell变量。
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 2026.2.22 ~ 2026.4.12 -

II. Public POCs for CVE-2026-42435

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III. Intelligence Information for CVE-2026-42435

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Patches & Fixes for CVE-2026-42435 (1)

Vendor Advisories for CVE-2026-42435 (2)

Same Patch Batch · OpenClaw · 2026-05-05 · 26 CVEs total

CVE-2026-43566 9.1 CRITICAL OpenClaw 2026.4.7 < 2026.4.14 - Privilege Escalation via Untrusted Webhook Wake Events
CVE-2026-43534 9.1 CRITICAL OpenClaw < 2026.4.10 - Unsanitized External Input in Agent Hook Events
CVE-2026-42434 8.8 HIGH OpenClaw 2026.4.5 < 2026.4.10 - Sandbox Escape via host Parameter Override in Exec Routing
CVE-2026-43571 8.8 HIGH OpenClaw < 2026.4.10 - Untrusted Workspace Plugin Shadow Resolution in Channel Setup
CVE-2026-43569 8.8 HIGH OpenClaw < 2026.4.9 - Untrusted Provider Plugin Auto-enablement via Workspace Provider Aut
CVE-2026-43530 8.8 HIGH OpenClaw 2026.2.23 < 2026.4.12 - Weakened Exec Approval Binding via busybox and toybox App
CVE-2026-43533 8.6 HIGH OpenClaw < 2026.4.10 - Arbitrary Local File Read via QQBot Media Tags
CVE-2026-42439 8.5 HIGH OpenClaw < 2026.4.10 - SSRF Policy Bypass in Browser Tabs Action Routes
CVE-2026-43526 8.2 HIGH OpenClaw < 2026.4.12 - Server-Side Request Forgery via QQBot Reply Media URL Handling
CVE-2026-43573 7.7 HIGH OpenClaw < 2026.4.10 - SSRF Policy Bypass in Existing-Session Browser Interaction Routes
CVE-2026-42436 7.7 HIGH OpenClaw < 2026.4.14 - Internal Page Content Exposure via Browser Snapshot and Screenshot
CVE-2026-42438 7.7 HIGH OpenClaw 2026.4.9 < 2026.4.10 - Sender Policy Bypass in Host Media Attachment Reads
CVE-2026-43527 7.7 HIGH OpenClaw < 2026.4.14 - Server-Side Request Forgery via Private Network Navigation
CVE-2026-43532 7.7 HIGH OpenClaw 2026.4.7 < 2026.4.10 - Sandbox Media Normalization Bypass via Discord Event Cover
CVE-2026-42437 7.5 HIGH OpenClaw 2026.4.9 < 2026.4.10 - Denial of Service via Oversized WebSocket Frames in Voice-
CVE-2026-43531 7.3 HIGH OpenClaw < 2026.4.9 - Environment Variable Injection via Workspace .env File
CVE-2026-43535 6.8 MEDIUM OpenClaw < 2026.4.14 - Authorization Context Reuse in Collect-Mode Queue Batches
CVE-2026-43528 6.5 MEDIUM OpenClaw < 2026.4.14 - Redaction Bypass via sourceConfig and runtimeConfig Aliases
CVE-2026-43567 6.5 MEDIUM OpenClaw < 2026.4.10 - Path Traversal in screen_record outPath Parameter
CVE-2026-43568 6.5 MEDIUM OpenClaw 2026.4.5 through 2026.4.9 - Privilege Escalation via Memory Dreaming Configuratio

Showing top 20 of 26 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: OpenClaw
Same vendor: OpenClaw
Same weakness: CWE-184

V. Comments for CVE-2026-42435

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