CVE-2026-116130

Full vulnerability record from the local CVENow database.

Description

HTTP::Parser::XS versions before 0.18 for Perl truncate PATH_INFO at an encoded NUL byte in parse_http_request. The XS parser URL-decodes the request path and measures the result with strlen(), so PATH_INFO ends at the first byte decoded from %00. The pure-Perl backend is not affected. A remote attacker can send a path that a proxy or filter checks in full while the application routes on a shorter one.

Severity

Not scored

CVSS score

Not available

Vulnerability status

Received

Source identifier

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

Published

2026-10-30 13:18:31.407000

Last modified

2026-10-30 13:18:31.407000

View original CVE JSON

{
  "id": "CVE-2026-116130",
  "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
  "published": "2026-10-30T13:18:31.407",
  "lastModified": "2026-10-30T13:18:31.407",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "HTTP::Parser::XS versions before 0.18 for Perl truncate PATH_INFO at an encoded NUL byte in parse_http_request.\n\nThe XS parser URL-decodes the request path and measures the result with strlen(), so PATH_INFO ends at the first byte decoded from %00. The pure-Perl backend is not affected.\n\nA remote attacker can send a path that a proxy or filter checks in full while the application routes on a shorter one."
    }
  ],
  "affected": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "collectionURL": "https://cpan.org/modules",
          "packageName": "HTTP-Parser-XS",
          "modules": [
            "HTTP::Parser::XS"
          ],
          "programFiles": [
            "XS.xs"
          ],
          "programRoutines": [
            {
              "name": "HTTP::Parser::XS::parse_http_request"
            }
          ],
          "repo": "https://github.com/kazuho/p5-http-parser-xs",
          "packageURL": "pkg:cpan/HTTP-Parser-XS",
          "versions": [
            {
              "version": "0",
              "lessThan": "0.18",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {},
  "weaknesses": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-626"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/kazuho/p5-http-parser-xs/commit/f388b9d7994722b01edd03d57de7d2fb819e1aae.patch",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    },
    {
      "url": "https://metacpan.org/release/KAZUHO/HTTP-Parser-XS-0.18/changes",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    }
  ]
}