CVE-2026-121006

Full vulnerability record from the local CVENow database.

Description

HTTP::Body versions before 1.24_02 for Perl parse the trailer in quadratic time. Everything after the last chunk in the same call to add() is parsed with HTTP::Headers, which takes time quadratic in the number of fields of one name. For example, it takes several seconds to parse 16 KiB of "a:" lines. A remote attackercan exhause the CPU with a single request. HTTP::Body version 1.25 limits the size and number of lines in the trailer.

Severity

Not scored

CVSS score

Not available

Vulnerability status

Received

Source identifier

9b29abf9-4ab0-4765-b253-1875cd9b441e

Published

2026-11-06 08:17:19.827000

Last modified

2026-11-06 08:17:19.827000

View original CVE JSON

{
  "id": "CVE-2026-121006",
  "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
  "published": "2026-11-06T08:17:19.827",
  "lastModified": "2026-11-06T08:17:19.827",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "HTTP::Body versions before 1.24_02 for Perl parse the trailer in quadratic time.\n\nEverything after the last chunk in the same call to add() is parsed with HTTP::Headers, which takes time quadratic in the number of fields of one name.  For example, it takes several seconds to parse 16 KiB of \"a:\" lines.\n\nA remote attackercan exhause the CPU with a single request.\n\nHTTP::Body version 1.25 limits the size and number of lines in the trailer."
    }
  ],
  "affected": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "collectionURL": "https://cpan.org/modules",
          "packageName": "HTTP-Body",
          "modules": [
            "HTTP::Body"
          ],
          "programFiles": [
            "lib/HTTP/Body.pm"
          ],
          "programRoutines": [
            {
              "name": "HTTP::Body::add"
            }
          ],
          "repo": "https://github.com/libwww-perl/HTTP-Body",
          "packageURL": "pkg:cpan/HTTP-Body",
          "versions": [
            {
              "version": "0",
              "lessThan": "1.24_02",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {},
  "weaknesses": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/libwww-perl/HTTP-Body/commit/983dd4ca3b863ab513240b02c91c3114fb299389.patch",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    },
    {
      "url": "https://metacpan.org/release/GETTY/HTTP-Body-1.24_02/changes",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    }
  ]
}