cve-2026-76183

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                "id": "CVE-2026-76183",
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                "timestamp": "2026-09-23T15:33:34.949308Z",
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          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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          "defaultStatus": "unaffected",
          "product": "Apache Tomcat",
          "vendor": "Apache Software Foundation",
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              "version": "10.1.0-M1",
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              "lessThanOrEqual": "9.0.121",
              "status": "affected",
              "version": "9.0.0.M1",
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            {
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              "status": "affected",
              "version": "8.5.0",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "7.0.109",
              "status": "affected",
              "version": "7.0.43",
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              "status": "affected",
              "version": "0",
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      "credits": [
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          "type": "finder",
          "value": "Zhang Yilin"
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              "value": "<p>Authentication Bypass by Alternate Name vulnerability in Apache Tomcat allowed the security constraints for any WebSocket endpoint to be bypassed.</p><p>This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through 10.1.59, from 9.0.0.M1 through 9.0.121.</p><p>The following versions were EOS at the time the CVE was created but are \nknown to be affected: from 8.5.0 through 8.5.100, from 7.0.43 through 7.0.109. Other unsupported versions may also be affected.<br></p><p>Users are recommended to upgrade to version 11.0.26, 10.1.60 or 9.0.122, which fix the issue.</p>"
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        {
          "descriptions": [
            {
              "cweId": "CWE-289",
              "description": "CWE-289 Authentication Bypass by Alternate Name",
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              "type": "CWE"
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      "providerMetadata": {
        "dateUpdated": "2026-09-23T12:19:55.043Z",
        "orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
        "shortName": "apache"
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          "url": "https://lists.apache.org/thread/45mxk8nj2q8pkhct6lfxkvtm2jpywrsp"
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      "source": {
        "discovery": "EXTERNAL"
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      "title": "Apache Tomcat: Bypass of security constraints for WebSocket endpoints",
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    "assignerShortName": "apache",
    "cveId": "CVE-2026-76183",
    "datePublished": "2026-09-23T11:16:09.907Z",
    "dateReserved": "2026-08-19T10:37:56.319Z",
    "dateUpdated": "2026-09-23T15:37:17.161Z",
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