CVE-2026-115825

Full vulnerability record from the local CVENow database.

Description

HTTP::Server::PSGI versions before 1.0056 for Perl allow a single request to crash the server by declaring a large Content-Length. The request body is read with sysread() calls sized by the remaining Content-Length. Perl grows the read buffer to the requested length before any data arrives, so the server tries to allocate as much memory as the client declares. A remote attacker can send one request with a large Content-Length and a few body bytes, and perl exits with an out-of-memory error before the application is called. HTTP::Server::PSGI runs as a single process, so the server stays down until restarted.

Severity

Not scored

CVSS score

Not available

Vulnerability status

Awaiting Analysis

Source identifier

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

Published

2026-10-25 17:17:01.990000

Last modified

2026-10-26 18:39:42.503000

View original CVE JSON

{
  "id": "CVE-2026-115825",
  "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
  "published": "2026-10-25T17:17:01.990",
  "lastModified": "2026-10-26T18:39:42.503",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "HTTP::Server::PSGI versions before 1.0056 for Perl allow a single request to crash the server by declaring a large Content-Length.\n\nThe request body is read with sysread() calls sized by the remaining Content-Length. Perl grows the read buffer to the requested length before any data arrives, so the server tries to allocate as much memory as the client declares.\n\nA remote attacker can send one request with a large Content-Length and a few body bytes, and perl exits with an out-of-memory error before the application is called. HTTP::Server::PSGI runs as a single process, so the server stays down until restarted."
    }
  ],
  "affected": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "collectionURL": "https://cpan.org/modules",
          "packageName": "Plack",
          "modules": [
            "HTTP::Server::PSGI"
          ],
          "programFiles": [
            "lib/HTTP/Server/PSGI.pm"
          ],
          "programRoutines": [
            {
              "name": "HTTP::Server::PSGI::handle_connection"
            }
          ],
          "repo": "https://github.com/plack/Plack",
          "packageURL": "pkg:cpan/Plack",
          "versions": [
            {
              "version": "0",
              "lessThan": "1.0056",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {},
  "weaknesses": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-789"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/plack/Plack/commit/11545871cadc5df1b744cebb429cfeb4ebc1069a.patch",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    },
    {
      "url": "https://metacpan.org/release/MIYAGAWA/Plack-1.0056/changes",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2026/10/26/10",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ]
}