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GHSA-QGP9-FRP4-99QF

Vulnerability from github – Published: 2026-10-30 15:34 – Updated: 2026-10-30 18:32

Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-116130"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-626"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-30T13:18:31Z",
    "severity": null
  },
  "details": "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.",
  "id": "GHSA-qgp9-frp4-99qf",
  "modified": "2026-10-30T18:32:36Z",
  "published": "2026-10-30T15:34:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-116130"
    },
    {
      "type": "WEB",
      "url": "https://github.com/kazuho/p5-http-parser-xs/commit/f388b9d7994722b01edd03d57de7d2fb819e1aae.patch"
    },
    {
      "type": "WEB",
      "url": "https://metacpan.org/release/KAZUHO/HTTP-Parser-XS-0.18/changes"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/10/30/12"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-116130 (GCVE-0-2026-116130)

Vulnerability from cvelistv5 – Published: 2026-10-30 12:38 – Updated: 2026-10-30 15:05

Title

HTTP::Parser::XS versions before 0.18 for Perl truncate PATH_INFO at an encoded NUL byte in parse_http_request

Summary

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

No CVSS data available.

CWE

CWE-626 - Null Byte Interaction Error (Poison Null Byte)

Assigner

CPANSec CNA under the redhat root

CNA scorecard C 62/100 over 342 records in the last 180 days details

References

3 references

URL	Tags
https://github.com/kazuho/p5-http-parser-xs/commi…	patch
https://metacpan.org/release/KAZUHO/HTTP-Parser-X…	release-notes
http://www.openwall.com/lists/oss-security/2026/1…

Impacted products

1 product

Vendor	Product	Version
		Affected: 0 , < 0.18 (custom)

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JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2026-10-30T15:05:28.040Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/10/30/12"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "modules": [
            "HTTP::Parser::XS"
          ],
          "packageName": "HTTP-Parser-XS",
          "packageURL": "pkg:cpan/HTTP-Parser-XS",
          "programFiles": [
            "XS.xs"
          ],
          "programRoutines": [
            {
              "name": "HTTP::Parser::XS::parse_http_request"
            }
          ],
          "repo": "https://github.com/kazuho/p5-http-parser-xs",
          "versions": [
            {
              "lessThan": "0.18",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "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."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-626",
              "description": "CWE-626 Null Byte Interaction Error (Poison Null Byte)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-30T12:38:27.038Z",
        "orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
        "shortName": "CPANSec"
      },
      "references": [
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/kazuho/p5-http-parser-xs/commit/f388b9d7994722b01edd03d57de7d2fb819e1aae.patch"
        },
        {
          "tags": [
            "release-notes"
          ],
          "url": "https://metacpan.org/release/KAZUHO/HTTP-Parser-XS-0.18/changes"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to HTTP-Parser-XS 0.18 or later."
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "HTTP::Parser::XS versions before 0.18 for Perl truncate PATH_INFO at an encoded NUL byte in parse_http_request",
      "x_generator": {
        "engine": "cpansec-cna-tool 0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
    "assignerShortName": "CPANSec",
    "cveId": "CVE-2026-116130",
    "datePublished": "2026-10-30T12:38:27.038Z",
    "dateReserved": "2026-10-25T10:58:24.860Z",
    "dateUpdated": "2026-10-30T15:05:28.040Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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