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Critical

HTTP client can remove the X-Forwarded headers in Traefik

Type: advisorySources: OSV

Traefik is a golang, Cloud Native Application Proxy. When a HTTP request is processed by Traefik, certain HTTP headers such as X-Forwarded-Host or X-Forwarded-Port are added by Traefik before the request is routed to the application. For a HTTP client, it should not be possible to remove or modify these headers. Since the application trusts the value of these headers, security implications might arise, if they can be modified. For HTTP/1.1, however, it was found that some of theses custom headers can indeed be removed and in certain cases manipulated. The attack relies on the HTTP/1.1 behavior, that headers can be defined as hop-by-hop via the HTTP Connection header. This issue has been addressed in release versions 2.11.9 and 3.1.3. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2024-45410
Confirmed fixed CVEs
Not specified
Updated in this feed
6 Nov 2026, 19:20 UTC · Revision 1

Source evidence

HTTP client can remove the X-Forwarded headers in Traefik

core-osv · Original source

Published 19 Sept 2024, 22:51 UTC

Traefik is a golang, Cloud Native Application Proxy. When a HTTP request is processed by Traefik, certain HTTP headers such as X-Forwarded-Host or X-Forwarded-Port are added by Traefik before the request is routed to the application. For a HTTP client, it should not be possible to remove or modify these headers. Since the application trusts the value of these headers, security implications might arise, if they can be modified. For HTTP/1.1, however, it was found that some of theses custom headers can indeed be removed and in certain cases manipulated. The attack relies on the HTTP/1.1 behavior, that headers can be defined as hop-by-hop via the HTTP Connection header. This issue has been addressed in release versions 2.11.9 and 3.1.3. Users are advised to upgrade. There are no known workarounds for this vulnerability.

osv:CVE-2024-45410
Complete source record
{
  "id": "e9ae4418d106708db4dd8b35b7a3448a277351d7444c1bdb87a0b78998c4da0a",
  "url": "https://osv.dev/vulnerability/CVE-2024-45410",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "HTTP client can remove the X-Forwarded headers in Traefik",
    "summary": "Traefik is a golang, Cloud Native Application Proxy. When a HTTP request is processed by Traefik, certain HTTP headers such as X-Forwarded-Host or X-Forwarded-Port are added by Traefik before the request is routed to the application. For a HTTP client, it should not be possible to remove or modify these headers. Since the application trusts the value of these headers, security implications might arise, if they can be modified. For HTTP/1.1, however, it was found that some of theses custom headers can indeed be removed and in certain cases manipulated. The attack relies on the HTTP/1.1 behavior, that headers can be defined as hop-by-hop via the HTTP Connection header. This issue has been addressed in release versions 2.11.9 and 3.1.3. Users are advised to upgrade. There are no known workarounds for this vulnerability.",
    "evidence": "osv:CVE-2024-45410",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2024-45410",
      "aliases": [
        "CVE-2024-45410",
        "GHSA-62c8-mh53-4cqv",
        "GO-2024-3135"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/traefik/traefik",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "06d7fab820dc1e486fe59371aeb359c965767ded"
                },
                {
                  "introduced": "d99d2f95e66a28ee8180634dc80fdf13ba68c62a"
                },
                {
                  "fixed": "89f3b272c3d4ed3f075f92f8acca494cdba4f708"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
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                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:*",
                    "range": [
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                        "introduced": "3.0.0"
                      },
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                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
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                        "fixed": "06d7fab820dc1e486fe59371aeb359c965767ded"
                      }
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                    "source": "REFERENCES_TAG",
                    "original_tag": "v2.11.9"
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          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-45410.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:47.926291014Z",
      "provider": "osv",
      "references": [
        "https://github.com/traefik/traefik/releases/tag/v2.11.9",
        "https://github.com/traefik/traefik/releases/tag/v3.1.3",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/45xxx/CVE-2024-45410.json",
        "https://github.com/traefik/traefik/security/advisories/GHSA-62c8-mh53-4cqv",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-45410"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-345",
          "CWE-348"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/45xxx/CVE-2024-45410.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-45410",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 515960,
  "published_at": "2024-09-19T22:51:02.622+00:00"
}