PYSEC-2026-1058

Vulnerability from pysec - Published: 2026-07-07 10:17 - Updated: 2026-07-07 11:31
VLAI
Details

HTTP Response Smuggling vulnerability in Apache HTTP Server via mod_proxy_uwsgi. This issue affects Apache HTTP Server from 2.4.30 through 2.4.55 and the uWSGI PyPI package prior to version 2.0.22. Special characters in the origin response header can truncate/split the response forwarded to the client.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Impacted products
Name purl
uwsgi pkg:pypi/uwsgi
Aliases
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "uwsgi",
        "purl": "pkg:pypi/uwsgi"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.0.22"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.4.10",
        "1.4.9",
        "1.9",
        "1.9.1",
        "1.9.10",
        "1.9.11",
        "1.9.12",
        "1.9.13",
        "1.9.14",
        "1.9.15",
        "1.9.16",
        "1.9.17",
        "1.9.17.1",
        "1.9.18",
        "1.9.18.1",
        "1.9.18.2",
        "1.9.19",
        "1.9.2",
        "1.9.20",
        "1.9.21",
        "1.9.21.1",
        "1.9.3",
        "1.9.4",
        "1.9.5",
        "1.9.6",
        "1.9.7",
        "1.9.8",
        "1.9.9",
        "2.0",
        "2.0.1",
        "2.0.10",
        "2.0.11",
        "2.0.11.1",
        "2.0.11.2",
        "2.0.12",
        "2.0.13",
        "2.0.13.1",
        "2.0.14",
        "2.0.15",
        "2.0.16",
        "2.0.17",
        "2.0.17.1",
        "2.0.18",
        "2.0.19",
        "2.0.19.1",
        "2.0.2",
        "2.0.20",
        "2.0.21",
        "2.0.3",
        "2.0.4",
        "2.0.5",
        "2.0.5.1",
        "2.0.6",
        "2.0.7",
        "2.0.8",
        "2.0.9"
      ]
    }
  ],
  "aliases": [
    "CVE-2023-27522",
    "GHSA-vcph-37mh-fqrh"
  ],
  "details": "HTTP Response Smuggling vulnerability in Apache HTTP Server via mod_proxy_uwsgi. This issue affects Apache HTTP Server from 2.4.30 through 2.4.55 and the uWSGI PyPI package prior to version 2.0.22. Special characters in the origin response header can truncate/split the response forwarded to the client.",
  "id": "PYSEC-2026-1058",
  "modified": "2026-07-07T11:31:24.643049Z",
  "published": "2026-07-07T10:17:28.280695Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-27522"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/httpd/commit/d753ea76b5972a85349b68c31b59d04c60014f2d"
    },
    {
      "type": "WEB",
      "url": "https://github.com/unbit/uwsgi/commit/58ee1df31fa9e9af106aaeabb82374c36b433822"
    },
    {
      "type": "WEB",
      "url": "https://github.com/unbit/uwsgi/commit/acb03530aaaeaa810f28a5b64da619525940f569"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/unbit/uwsgi"
    },
    {
      "type": "WEB",
      "url": "https://httpd.apache.org/security/vulnerabilities_24.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2023/04/msg00028.html"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202309-01"
    },
    {
      "type": "WEB",
      "url": "https://uwsgi-docs.readthedocs.io/en/latest/Changelog-2.0.22.html"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/uwsgi"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-vcph-37mh-fqrh"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Apache HTTP Server via mod_proxy_uwsgi HTTP response smuggling"
}


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Nomenclature

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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • 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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