BREW-ALOT-CVE-2020-10108 (GHSA-H96W-MMRF-2H6V)

Vulnerability from osv_homebrew – Published: 2026-08-13 16:35 – Updated: 2026-09-09 23:40 – Source website
VLAI
Summary
Improper Input Validation in Twisted
Details

In Twisted Web before 20.3.0, there was an HTTP request splitting vulnerability. When presented with two content-length headers, it ignored the first header. When the second content-length value was set to zero, the request body was interpreted as a pipelined request.

Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.3 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "fix": "bump",
        "range_state": "fixed",
        "resource": "twisted",
        "resource_purl": "pkg:pypi/twisted@26.4.0",
        "upstream_fixed_in": "20.3.0"
      },
      "package": {
        "ecosystem": "Homebrew",
        "name": "alot",
        "purl": "pkg:brew/alot"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.12_2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "confidence": "high",
    "source": "matched",
    "strategy": "registry",
    "upstream_evidence": [
      {
        "ecosystem": "PyPI",
        "key": "pkg:pypi/twisted@26.4.0",
        "name": "twisted",
        "resource": "twisted",
        "strategy": "registry",
        "subject_version": "26.4.0"
      }
    ]
  },
  "details": "In Twisted Web before 20.3.0, there was an HTTP request splitting vulnerability. When presented with two content-length headers, it ignored the first header. When the second content-length value was set to zero, the request body was interpreted as a pipelined request.",
  "id": "BREW-alot-CVE-2020-10108",
  "modified": "2026-09-09T23:40:58Z",
  "published": "2026-08-13T16:35:13Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-10108"
    },
    {
      "type": "WEB",
      "url": "https://github.com/twisted/twisted/commit/4a7d22e490bb8ff836892cc99a1f54b85ccb0281"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/twisted/PYSEC-2020-259.yaml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/twisted/twisted"
    },
    {
      "type": "WEB",
      "url": "https://github.com/twisted/twisted/blob/6ff2c40e42416c83203422ff70dfc49d2681c8e2/NEWS.rst#twisted-2030-2020-03-13"
    },
    {
      "type": "WEB",
      "url": "https://know.bishopfox.com/advisories"
    },
    {
      "type": "WEB",
      "url": "https://know.bishopfox.com/advisories/twisted-version-19.10.0"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2022/02/msg00021.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6ISMZFZBWW4EV6ETJGXAYIXN3AT7GBPL"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YW3NIL7VXSGJND2Q4BSXM3CFTAFU6T7D"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202007-24"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4308-1"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4308-2"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpuoct2020.html"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Improper Input Validation in Twisted",
  "upstream": [
    "GHSA-h96w-mmrf-2h6v",
    "CVE-2020-10108",
    "PYSEC-2020-259"
  ]
}



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