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Security advisory

Type: advisorySources: OSVCVE: CVE-2022-23959

In Varnish Cache before 6.6.2 and 7.x before 7.0.2, Varnish Cache 6.0 LTS before 6.0.10, and and Varnish Enterprise (Cache Plus) 4.1.x before 4.1.11r6 and 6.0.x before 6.0.9r4, request smuggling can occur for HTTP/1 connections.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2022-23959
Confirmed fixed CVEs
Not specified
Updated in this feed
3 Nov 2026, 01:42 UTC · Revision 1

Source evidence

CVE-2022-23959

core-osv · Original source

Published 26 Jan 2022, 00:38 UTC

In Varnish Cache before 6.6.2 and 7.x before 7.0.2, Varnish Cache 6.0 LTS before 6.0.10, and and Varnish Enterprise (Cache Plus) 4.1.x before 4.1.11r6 and 6.0.x before 6.0.9r4, request smuggling can occur for HTTP/1 connections.

osv:CVE-2022-23959
Complete source record
{
  "id": "5f9e4838d2e3d4501d810442afa658e1aed775fe67bec1b6079b5071c4878a80",
  "url": "https://osv.dev/vulnerability/CVE-2022-23959",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2022-23959",
    "summary": "In Varnish Cache before 6.6.2 and 7.x before 7.0.2, Varnish Cache 6.0 LTS before 6.0.10, and and Varnish Enterprise (Cache Plus) 4.1.x before 4.1.11r6 and 6.0.x before 6.0.9r4, request smuggling can occur for HTTP/1 connections.",
    "evidence": "osv:CVE-2022-23959",
    "products": [],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2022-23959",
      "aliases": [
        "BIT-varnish-2022-23959",
        "CVE-2022-23959"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/varnishcache/varnish-cache",
              "type": "GIT",
              "events": [
                {
                  "introduced": "454733b82a3279a1603516b4f0a07f8bad4bcd55"
                },
                {
                  "fixed": "9b5f68e19ca0ab60010641e305fd12822f18d42c"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:varnish_cache_project:varnish_cache:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "7.0.0"
                      },
                      {
                        "fixed": "7.0.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "varnish-7.0.1",
            "varnish-7.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-23959.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:25.101451069Z",
      "provider": "osv",
      "references": [
        "https://docs.varnish-software.com/security/VSV00008/",
        "https://varnish-cache.org/security/VSV00008.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/23xxx/CVE-2022-23959.json",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UMMDMQWNAE3BTSZUHXQHVAMZC5TLHLYT/",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-23959",
        "https://www.debian.org/security/2022/dsa-5088",
        "https://lists.debian.org/debian-lts-announce/2022/02/msg00014.html"
      ],
      "provider_metadata": {
        "cna_assigner": "mitre",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/23xxx/CVE-2022-23959.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-23959",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 491699,
  "published_at": "2022-01-26T00:38:55+00:00"
}