CVE-2026-32973

# PoC Concept for CVE-2026-32973 # This demonstrates the bypass logic using the '?' wildcard def vulnerable_check(pattern, path): # Simulating the flawed normalization (lowercasing) norm_pattern = pattern.lower() norm_path = path.lower() # Simulating the flawed glob match where '?' matches '/' # This is a simplified representation of the vulnerability import re regex = re.escape(norm_pattern).replace(r'\*', '.*').replace(r'\?', '.') # The vulnerability allows '.' to match '/' effectively if re.fullmatch(regex, norm_path): return True return False # Scenario: Allowlist is "/usr/bin/date" allowlist = "/usr/bin/date" # Attack payload: Using '?' to match '/' # If the system treats '?' as matching '/', this might bypass strict checks # depending on the exact pattern logic. # Example: trying to execute "/bin/sh" if the allowlist logic is too permissive # or if there is a related path. # This is a conceptual demonstration based on the description of # 'overmatches on POSIX paths' and 'wildcard matching across path segments'. print("Vulnerability confirmed if logic allows '?' to match path separators.")

{"cve": {"id": "CVE-2026-32973", "sourceIdentifier": "[email protected]", "published": "2026-03-29T13:17:01.367", "lastModified": "2026-03-30T17:03:28.690", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "OpenClaw before 2026.3.11 contains an exec allowlist bypass vulnerability where matchesExecAllowlistPattern improperly normalizes patterns with lowercasing and glob matching that overmatches on POSIX paths. Attackers can exploit the ? wildcard matching across path segments to execute commands or paths not intended by operators."}, {"lang": "es", "value": "OpenClaw anterior a 2026.3.11 contiene una vulnerabilidad de omisión de lista de permitidos de ejecución donde matchesExecAllowlistPattern normaliza incorrectamente patrones con minúsculas y coincidencia de glob que coincide en exceso en rutas POSIX. Los atacantes pueden explotar la coincidencia del comodín ? a través de segmentos de ruta para ejecutar comandos o rutas no previstos por los operadores."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/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": 8.8, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "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:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-625"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*", "versionEndExcluding": "2026.3.11", "matchCriteriaId": "4B01F0B5-B0CB-462E-A546-2BA2CACD83D5"}]}]}], "references": [{"url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-f8r2-vg7x-gh8m", "source": "[email protected]", "tags": ["Vendor Advisory"]}, {"url": "https://www.vulncheck.com/advisories/openclaw-exec-allowlist-pattern-overmatch-via-posix-path-normalization", "source": "[email protected]", "tags": ["Third Party Advisory"]}]}}