{"id":"CVE-2026-21962","published":"2026-01-20T22:15:59Z","modified":"2026-08-25T04:18:11Z","title":"Oracle HTTP Server and Oracle Weblogic Server Proxy Plug-in Improper Access Control Vulnerability","vendor":"Oracle","product":"HTTP Server and Oracle Weblogic Server Proxy Plug-in","tier":"core","eol":null,"description":{"text":"Vulnerability in the Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in product of Oracle Fusion Middleware (component: Weblogic Server Proxy Plug-in for Apache HTTP Server, Weblogic Server Proxy Plug-in for IIS).  Supported versions that are affected are 12.2.1.4.0, 14.1.1.0.0 and  14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in.  While the vulnerability is in Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in, attacks may significantly impact additional products (scope change).  Successful attacks of this vulnerability can result in  unauthorized creation, deletion or modification access to critical data or all Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in accessible data as well as  unauthorized access to critical data or complete access to all Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in accessible data. Note: Affected version for Weblogic Server Proxy Plug-in for IIS is 12.2.1.4.0 only. CVSS 3.1 Base Score 10.0 (Confidentiality and Integrity impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N).","provenance":"source","from":"NVD"},"summary":{"text":"An improper access control flaw in the Weblogic Server Proxy Plug-in component of Oracle's HTTP Server and Oracle Weblogic Server Proxy Plug-in product (Oracle Fusion Middleware), covering both the Apache HTTP Server and IIS variants of the plug-in. An unauthenticated attacker with network access over HTTP can exploit it without any user interaction or special configuration, gaining unauthorized creation, deletion, or modification of critical data as well as access to critical data, with the impact extending beyond the vulnerable component to other products.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:11:42Z"},"cvss":{"score":10.0,"severity":"CRITICAL","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N","provenance":"source","from":"NVD"},"epss":{"score":0.73192,"percentile":0.99456,"date":"2026-10-30","provenance":"source"},"kev":{"dateAdded":"2026-08-24","dueDate":"2026-08-27","ransomware":false,"requiredAction":"Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.","notes":"https://www.oracle.com/security-alerts/cpujan2026.html ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-21962","provenance":"source"},"vulncheckKev":{"dateAdded":"2026-02-10","exploitedFirstSeen":"2026-02-10","ransomware":false,"evidence":[{"url":"https://www.greynoise.io/blog/active-ivanti-exploitation","date":"2026-02-10"},{"url":"https://www.cloudsek.com/blog/honey-for-hackers-a-study-of-attacks-targeting-the-recent-cve-2026-21962-and-other-critical-weblogic-vulnerabilities-on-a-high-interactive-oracle-honeypot","date":"2026-03-25"},{"url":"https://falconfeeds.io/blogs/cybercrime-supply-chain-shadow-agents-threat-actor-ecosystem/","date":"2026-06-24"},{"url":"https://socradar.io/blog/snowlight-government-chinese-campaign/","date":"2026-07-31"},{"url":"https://previdian.com/CVE-2026-21962","date":"2026-08-24"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2026-08-24"},{"url":"https://www.recordedfuture.com/blog/august-2026-cve-landscape","date":"2026-09-08"}],"evidenceTotal":7,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev | Oct 31, 2026","url":"https://otx.alienvault.com/pulse/6ae4aefab0c2191cecd41862","created":"2026-10-30"},{"name":"Actively_Exploited_Kev | Oct 30, 2026","url":"https://otx.alienvault.com/pulse/6ae35d889ea92b4ce19c2680","created":"2026-10-29"},{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"},{"name":"Actively_Exploited_Kev | Oct 23, 2026","url":"https://otx.alienvault.com/pulse/6ada236fcfba2dfa730ea482","created":"2026-10-22"},{"name":"Actively_Exploited_Kev | Oct 22, 2026","url":"https://otx.alienvault.com/pulse/6ad8d33a077cbb5cab524d80","created":"2026-10-21"},{"name":"Actively_Exploited_Kev | Oct 21, 2026","url":"https://otx.alienvault.com/pulse/6ad78130c4d1ac2be83a8b6d","created":"2026-10-20"},{"name":"Actively_Exploited_Kev | Oct 20, 2026","url":"https://otx.alienvault.com/pulse/6ad62f63c24a405a3423cc13","created":"2026-10-19"}],"provenance":"machine"},"cwes":[{"id":"CWE-284","name":"Improper Access Control"}],"references":[{"url":"https://www.oracle.com/security-alerts/cpujan2026.html","tags":["Patch","Vendor Advisory"]},{"url":"https://github.com/Ashwesker/Ashwesker-CVE-2026-21962/issues/1","tags":["Broken Link","Not Applicable"]},{"url":"https://web.archive.org/web/20260129165916/https://github.com/Ashwesker/Ashwesker-CVE-2026-21962/issues/1","tags":["Issue Tracking"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-21962","tags":["US Government Resource"]},{"url":"https://x.com/0xacb/status/2015473216844620280","tags":["Not Applicable"]}],"techniques":[{"id":"T1190","name":"Exploit Public-Facing Application","tactics":["initial-access"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Unauthenticated network HTTP exploitation of public-facing server","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise","start":302,"end":409}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1005","name":"Data from Local System","tactics":["collection"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Grants access to data stored on the server","mappingType":"primary_impact","evidence":[{"from":"description","quote":"unauthorized access to critical data or complete access to all Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in accessible data","start":847,"end":982}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2026-3550","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-3550","exploited":true,"exploitedSince":"2026-08-24","provenance":"source"},"exploits":[],"exploitSources":{"pocGithub":{"count":10,"skipped":0,"earliest":"2026-01-22","earliestUrl":"https://github.com/samael0x4/CVE-2026-21962","repos":[{"name":"samael0x4/CVE-2026-21962","url":"https://github.com/samael0x4/CVE-2026-21962","stars":6,"created":"2026-01-22"},{"name":"boroeurnprach/Ashwesker-CVE-2026-21962","url":"https://github.com/boroeurnprach/Ashwesker-CVE-2026-21962","stars":6,"created":"2026-01-22"},{"name":"gregk4sec/cve-2026-21962","url":"https://github.com/gregk4sec/cve-2026-21962","stars":4,"created":"2026-03-08"},{"name":"George0Papasotiriou/CVE-2026-21962-Oracle-HTTP-Server-WebLogic-Proxy-Plug-in-Critical-","url":"https://github.com/George0Papasotiriou/CVE-2026-21962-Oracle-HTTP-Server-WebLogic-Proxy-Plug-in-Critical-","stars":3,"created":"2026-02-09"},{"name":"zeetee1235/CVE-2026-21962","url":"https://github.com/zeetee1235/CVE-2026-21962","stars":3,"created":"2026-08-27"}]},"first":{"date":"2026-01-22","source":"PoC-in-GitHub","url":"https://github.com/samael0x4/CVE-2026-21962"},"provenance":"source"},"exploitRefs":[],"flow":[{"stage":"exploitation","techniques":["T1190"],"provenance":"ai"},{"stage":"primary","techniques":["T1005"],"provenance":"ai"}],"timeline":[{"date":"2026-01-20","kind":"published","label":"Published 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