CVE catalog

CVE-2026-63718

Inconsistent Interpretation of HTTP Requests ('HTTP…

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') response smuggling vulnerability in Apache HTTP Server via mod_proxy_uwsgi and a crafted uwsgi response with Transfer-Encoding. This issue affects Apache HTTP Server: from 2.4.30 through 2.4.68.

Severity: High · CVSS 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published: Oct 1, 2026, 4:17:06 PM UTC
Updated: Oct 1, 2026, 5:17:30 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.43% · Oct 27, 2026

Projects and upstream resources

[apache2][Source-reported homepage]

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Version impact has not been established. The original provider fields are retained below.

Provider details and historical evidence

Original provider fields

{
  "package_releases": [
    {
      "name": "apache2",
      "status": "fixed",
      "release": "sid",
      "version": "2.4.69-1"
    },
    {
      "name": "apache2",
      "status": "fixed",
      "release": "forky",
      "version": "2.4.69-1"
    },
    {
      "name": "apache2",
      "status": "vulnerable",
      "release": "trixie",
      "version": "2.4.68-1~deb13u1"
    },
    {
      "name": "apache2",
      "status": "fixed",
      "release": "trixie-security",
      "version": "2.4.69-1~deb13u1"
    },
    {
      "name": "apache2",
      "status": "vulnerable",
      "release": "bookworm",
      "version": "2.4.68-1~deb12u1"
    },
    {
      "name": "apache2",
      "status": "vulnerable",
      "release": "bookworm-security",
      "version": "2.4.67-1~deb12u3"
    }
  ],
  "fixed_versions": [
    {
      "bug": null,
      "name": "apache2",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "not yet assigned",
      "fixed_version": "2.4.69-1"
    },
    {
      "bug": null,
      "name": "apache2",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "not yet assigned",
      "fixed_version": "2.4.69-1"
    },
    {
      "bug": null,
      "name": "apache2",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "not yet assigned",
      "fixed_version": "2.4.69-1~deb13u1"
    },
    {
      "bug": null,
      "name": "apache2",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "not yet assigned",
      "fixed_version": ""
    }
  ],
  "distribution_packages": [
    {
      "name": "http_server",
      "ranges": [
        {
          "fixed": "2.4.69",
          "introduced": "2.4.30",
          "last_affected": "",
          "start_excluding": ""
        }
      ],
      "ecosystem": "cpe",
      "fixed_version": "2.4.69",
      "provider_record_id": "NVD-CVE-2026-63718"
    },
    {
      "name": "apache2",
      "distro": "ubuntu",
      "ranges": [
        {
          "fixed": "2.4.58-1ubuntu8.17",
          "introduced": "0"
        }
      ],
      "release": "noble",
      "ecosystem": "deb",
      "fixed_version": "2.4.58-1ubuntu8.17"
    },
    {
      "name": "apache2-bin",
      "distro": "ubuntu",
      "ranges": [
        {
          "fixed": "2.4.58-1ubuntu8.17",
          "introduced": "0"
        }
      ],
      "release": "noble",
      "ecosystem": "deb",
      "fixed_version": "2.4.58-1ubuntu8.17"
    },
    {
      "name": "apache2-data",
      "distro": "ubuntu",
      "ranges": [
        {
          "fixed": "2.4.58-1ubuntu8.17",
          "introduced": "0"
        }
      ],
      "release": "noble",
      "ecosystem": "deb",
      "fixed_version": "2.4.58-1ubuntu8.17"
    },
    {
      "name": "apache2-dev",
      "distro": "ubuntu",
      "ranges": [
        {
          "fixed": "2.4.58-1ubuntu8.17",
          "introduced": "0"
        }
      ],
      "release": "noble",
      "ecosystem": "deb",
      "fixed_version": "2.4.58-1ubuntu8.17"
    },
    {
      "name": "apache2-doc",
      "distro": "ubuntu",
      "ranges": [
        {
          "fixed": "2.4.58-1ubuntu8.17",
          "introduced": "0"
        }
      ],
      "release": "noble",
      "ecosystem": "deb",
      "fixed_version": "2.4.58-1ubuntu8.17"
    },
    {
      "name": "apache2-ssl-dev",
      "distro": "ubuntu",
      "ranges": [
        {
          "fixed": "2.4.58-1ubuntu8.17",
          "introduced": "0"
        }
      ],
      "release": "noble",
      "ecosystem": "deb",
      "fixed_version": "2.4.58-1ubuntu8.17"
    },
    {
      "name": "apache2-suexec-custom",
      "distro": "ubuntu",
      "ranges": [
        {
          "fixed": "2.4.58-1ubuntu8.17",
          "introduced": "0"
        }
      ],
      "release": "noble",
      "ecosystem": "deb",
      "fixed_version": "2.4.58-1ubuntu8.17"
    },
    {
      "name": "apache2-suexec-pristine",
      "distro": "ubuntu",
      "ranges": [
        {
          "fixed": "2.4.58-1ubuntu8.17",
          "introduced": "0"
        }
      ],
      "release": "noble",
      "ecosystem": "deb",
      "fixed_version": "2.4.58-1ubuntu8.17"
    },
    {
      "name": "apache2-utils",
      "distro": "ubuntu",
      "ranges": [
        {
          "fixed": "2.4.58-1ubuntu8.17",
          "introduced": "0"
        }
      ],
      "release": "noble",
      "ecosystem": "deb",
      "fixed_version": "2.4.58-1ubuntu8.17"
    },
    {
      "name": "libapache2-mod-md",
      "distro": "ubuntu",
      "ranges": [
        {
          "fixed": "2.4.58-1ubuntu8.17",
          "introduced": "0"
        }
      ],
      "release": "noble",
      "ecosystem": "deb",
      "fixed_version": "2.4.58-1ubuntu8.17"
    },
    {
      "name": "libapache2-mod-proxy-uwsgi",
      "distro": "ubuntu",
      "ranges": [
        {
          "fixed": "2.4.58-1ubuntu8.17",
          "introduced": "0"
        }
      ],
      "release": "noble",
      "ecosystem": "deb",
      "fixed_version": "2.4.58-1ubuntu8.17"
    },
    {
      "name": "apache2",
      "distro": "alpine",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.4.69-r0"
            }
          ]
        }
      ],
      "release": "3.21",
      "versions": [],
      "ecosystem": "apk",
      "fixed_version": "2.4.69-r0",
      "provider_record_id": "ALPINE-CVE-2026-63718"
    },
    {
      "name": "apache2",
      "distro": "alpine",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.4.69-r0"
            }
          ]
        }
      ],
      "release": "3.22",
      "versions": [],
      "ecosystem": "apk",
      "fixed_version": "2.4.69-r0",
      "provider_record_id": "ALPINE-CVE-2026-63718"
    },
    {
      "name": "apache2",
      "distro": "alpine",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.4.69-r0"
            }
          ]
        }
      ],
      "release": "3.23",
      "versions": [],
      "ecosystem": "apk",
      "fixed_version": "2.4.69-r0",
      "provider_record_id": "ALPINE-CVE-2026-63718"
    },
    {
      "name": "apache2",
      "distro": "alpine",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.4.69-r0"
            }
          ]
        }
      ],
      "release": "3.24",
      "versions": [],
      "ecosystem": "apk",
      "fixed_version": "2.4.69-r0",
      "provider_record_id": "ALPINE-CVE-2026-63718"
    }
  ]
}

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[apache2]Unknown
Details (4)
- 2.4.68-1~deb12u1 · amd64 · bookworm
  Affected
  nvd · apache2 · debian · bookworm
- 2.4.68-1~deb12u1 · arm64 · bookworm
  Affected
  nvd · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · amd64 · bookworm-security
  Affected
  nvd · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · arm64 · bookworm-security
  Affected
  nvd · apache2 · debian · bookworm
[apache2-bin]Unknown
Source package: [apache2]
Details (4)
- 2.4.68-1~deb12u1 · amd64 · bookworm
  Affected
  nvd · apache2 · debian · bookworm
- 2.4.68-1~deb12u1 · arm64 · bookworm
  Affected
  nvd · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · amd64 · bookworm-security
  Affected
  nvd · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · arm64 · bookworm-security
  Affected
  nvd · apache2 · debian · bookworm
[apache2-data]Unknown
Source package: [apache2]
Details (4)
- 2.4.68-1~deb12u1 · all · bookworm
  Affected
  nvd · apache2 · debian · bookworm
- 2.4.68-1~deb12u1 · all · bookworm
  Affected
  nvd · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · all · bookworm-security
  Affected
  nvd · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · all · bookworm-security
  Affected
  nvd · apache2 · debian · bookworm
[apache2-dev]Unknown
Source package: [apache2]
Details (4)
- 2.4.68-1~deb12u1 · amd64 · bookworm
  Affected
  nvd · apache2 · debian · bookworm
- 2.4.68-1~deb12u1 · arm64 · bookworm
  Affected
  nvd · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · amd64 · bookworm-security
  Affected
  nvd · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · arm64 · bookworm-security
  Affected
  nvd · apache2 · debian · bookworm
[apache2-doc]Unknown
Source package: [apache2]
Details (4)
- 2.4.68-1~deb12u1 · all · bookworm
  Affected
  nvd · apache2 · debian · bookworm
- 2.4.68-1~deb12u1 · all · bookworm
  Affected
  nvd · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · all · bookworm-security
  Affected
  nvd · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · all · bookworm-security
  Affected
  nvd · apache2 · debian · bookworm
[apache2-ssl-dev]Unknown
Source package: [apache2]
Details (4)
- 2.4.68-1~deb12u1 · amd64 · bookworm
  Affected
  nvd · apache2 · debian · bookworm
- 2.4.68-1~deb12u1 · arm64 · bookworm
  Affected
  nvd · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · amd64 · bookworm-security
  Affected
  nvd · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · arm64 · bookworm-security
  Affected
  nvd · apache2 · debian · bookworm
[apache2-suexec-custom]Unknown
Source package: [apache2]
Details (4)
- 2.4.68-1~deb12u1 · amd64 · bookworm
  Affected
  nvd · apache2 · debian · bookworm
- 2.4.68-1~deb12u1 · arm64 · bookworm
  Affected
  nvd · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · amd64 · bookworm-security
  Affected
  nvd · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · arm64 · bookworm-security
  Affected
  nvd · apache2 · debian · bookworm
[apache2-suexec-pristine]Unknown
Source package: [apache2]
Details (4)
- 2.4.68-1~deb12u1 · amd64 · bookworm
  Affected
  nvd · apache2 · debian · bookworm
- 2.4.68-1~deb12u1 · arm64 · bookworm
  Affected
  nvd · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · amd64 · bookworm-security
  Affected
  nvd · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · arm64 · bookworm-security
  Affected
  nvd · apache2 · debian · bookworm
[apache2-utils]Unknown
Source package: [apache2]
Details (4)
- 2.4.68-1~deb12u1 · amd64 · bookworm
  Affected
  nvd · apache2 · debian · bookworm
- 2.4.68-1~deb12u1 · arm64 · bookworm
  Affected
  nvd · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · amd64 · bookworm-security
  Affected
  nvd · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · arm64 · bookworm-security
  Affected
  nvd · apache2 · debian · bookworm
[libapache2-mod-md]Unknown
Source package: [apache2]
Details (4)
- 2.4.68-1~deb12u1 · amd64 · bookworm
  Affected
  nvd · apache2 · debian · bookworm
- 2.4.68-1~deb12u1 · arm64 · bookworm
  Affected
  nvd · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · amd64 · bookworm-security
  Affected
  nvd · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · arm64 · bookworm-security
  Affected
  nvd · apache2 · debian · bookworm
[libapache2-mod-proxy-uwsgi]Unknown
Source package: [apache2]
Details (4)
- 2.4.68-1~deb12u1 · amd64 · bookworm
  Affected
  nvd · apache2 · debian · bookworm
- 2.4.68-1~deb12u1 · arm64 · bookworm
  Affected
  nvd · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · amd64 · bookworm-security
  Affected
  nvd · apache2 · debian · bookworm
- 2.4.67-1~deb12u3 · arm64 · bookworm-security
  Affected
  nvd · apache2 · debian · bookworm

Observed: Oct 27, 2026, 5:00:07 AM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]