Security advisory

{
  "id": "d3249e1426ef38634885d544307fbd15dad02a158cc2ecb47da4e14bef3772a5",
  "url": "https://osv.dev/vulnerability/CVE-2022-2255",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2022-2255",
    "summary": "A vulnerability was found in mod_wsgi. The X-Client-IP header is not removed from a request from an untrusted proxy, allowing an attacker to pass the X-Client-IP header to the target WSGI application because the condition to remove it is missing.",
    "evidence": "osv:CVE-2022-2255",
    "products": [],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2022-2255",
      "aliases": [
        "BIT-mod_wsgi-2022-2255",
        "CVE-2022-2255",
        "GHSA-7527-8855-9cf8",
        "PYSEC-2022-254"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/grahamdumpleton/mod_wsgi",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "a376ffc899a160e8ee91160e2da76edcfa260b31"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "4.9.3"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "VersionTextExtraction"
                  },
                  {
                    "cpe": "cpe:2.3:a:modwsgi:mod_wsgi:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "4.9.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "4.9.2",
            "4.9.1",
            "4.9.0",
            "4.8.0",
            "4.6.4",
            "4.6.3",
            "4.6.2",
            "4.6.1",
            "4.6.0",
            "4.5.24",
            "4.5.23",
            "4.5.22",
            "4.5.21",
            "4.5.20",
            "4.5.19",
            "4.5.18",
            "4.5.17",
            "4.5.16",
            "4.5.15",
            "4.5.14",
            "4.5.13",
            "4.5.12",
            "4.5.11",
            "4.5.10",
            "4.5.9",
            "4.5.8",
            "4.5.7",
            "4.5.6",
            "4.5.5",
            "4.5.4",
            "4.5.3",
            "4.5.2",
            "4.5.1",
            "4.5.0",
            "4.4.23",
            "4.4.22",
            "4.4.21",
            "4.4.20",
            "4.4.19",
            "4.4.18",
            "4.4.17",
            "4.4.16",
            "4.4.15",
            "4.4.14",
            "4.4.13",
            "4.4.12",
            "4.4.11",
            "4.4.10",
            "4.4.9",
            "4.4.8",
            "4.4.7",
            "4.4.6",
            "4.4.5",
            "4.4.4",
            "4.4.3",
            "4.4.2",
            "4.4.1",
            "4.4.0",
            "4.3.2",
            "4.3.1",
            "4.3.0",
            "4.2.8",
            "4.2.6",
            "4.2.5",
            "4.2.4",
            "4.2.3",
            "4.2.2",
            "4.2.1",
            "4.2.0",
            "4.1.3",
            "4.1.2",
            "4.1.1",
            "4.1.0",
            "3.5",
            "3.4",
            "3.4c1",
            "3.3",
            "3.2",
            "3.1",
            "3.0",
            "3.0c6",
            "3.0c5",
            "3.0c4",
            "3.0c3",
            "3.0c2",
            "3.0c1",
            "2.0",
            "2.0c5",
            "2.0c4",
            "2.0c3",
            "2.0c2",
            "2.0c1",
            "1.0",
            "1.0c4",
            "1.0c3",
            "1.0c2",
            "1.0c1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-2255.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:39.907671585Z",
      "provider": "osv",
      "references": [
        "https://github.com/GrahamDumpleton/mod_wsgi/blob/4.9.2/src/server/mod_wsgi.c#L13940-L13941",
        "https://github.com/GrahamDumpleton/mod_wsgi/blob/4.9.2/src/server/mod_wsgi.c#L14046-L14082",
        "https://modwsgi.readthedocs.io/en/latest/release-notes/version-4.9.3.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/2xxx/CVE-2022-2255.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-2255",
        "https://lists.debian.org/debian-lts-announce/2022/09/msg00021.html"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-348"
        ],
        "cna_assigner": "redhat",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/2xxx/CVE-2022-2255.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-2255",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 507495,
  "published_at": "2022-08-25T17:26:19+00:00"
}