Vulnerability from bitnami_vulndb
Published
2024-03-06 11:07
Modified
2026-03-20 12:05
Summary
Apache Tomcat: Trailer header parsing too lenient
Details

Improper Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0 through 11.0.0, from 10.1.0 through 10.1.13, from 9.0.0 through 9.0.81 and from 8.5.0 through 8.5.93 did not correctly parse HTTP trailer headers. A specially crafted, invalid trailer header could cause Tomcat to treat a single request as multiple requests leading to the possibility of request smuggling when behind a reverse proxy.

Older, EOL versions may also be affected.

Users are recommended to upgrade to version 11.0.0 onwards, 10.1.14 onwards, 9.0.81 onwards or 8.5.94 onwards, which fix the issue.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "tomcat",
        "purl": "pkg:bitnami/tomcat"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "8.5.0"
            },
            {
              "fixed": "8.5.94"
            },
            {
              "introduced": "9.0.1"
            },
            {
              "fixed": "9.0.81"
            },
            {
              "introduced": "10.1.1"
            },
            {
              "fixed": "10.1.14"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-45648"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*"
    ],
    "severity": "Medium"
  },
  "details": "Improper Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0 through 11.0.0, from 10.1.0 through 10.1.13, from 9.0.0 through 9.0.81 and from 8.5.0 through 8.5.93 did not correctly parse HTTP trailer headers. A specially \ncrafted, invalid trailer header could cause Tomcat to treat a single \nrequest as multiple requests leading to the possibility of request \nsmuggling when behind a reverse proxy.\n\nOlder, EOL versions may also be affected.\n\n\nUsers are recommended to upgrade to version 11.0.0 onwards, 10.1.14 onwards, 9.0.81 onwards or 8.5.94 onwards, which fix the issue.",
  "id": "BIT-tomcat-2023-45648",
  "modified": "2026-03-20T12:05:40.000Z",
  "published": "2024-03-06T11:07:43.292Z",
  "references": [
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2023/10/10/10"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread/2pv8yz1pyp088tsxfb7ogltk9msk0jdp"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00020.html"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20231103-0007/"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2023/dsa-5521"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2023/dsa-5522"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-45648"
    }
  ],
  "schema_version": "1.5.0",
  "summary": "Apache Tomcat: Trailer header parsing too lenient"
}


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Detection rules are retrieved from Rulezet.