CVE-2025-47952

Traefik (pronounced traffic) is an HTTP reverse proxy and load balancer. Prior to versions 2.11.25 and 3.4.1, there is a potential vulnerability in Traefik managing the requests using a PathPrefix, Path or PathRegex matcher. When Traefik is configured to route the requests to a backend using a matcher based on the path, if the URL contains a URL encoded string in its path, it’s possible to target a backend, exposed using another router, by-passing the middlewares chain. This issue has been patched in versions 2.11.25 and 3.4.1.

Database specific

{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-22"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/blob/ee626f5d79d5817bb21d6f048dc0da4c4e383443/cves/2025/47xxx/CVE-2025-47952.json"
}

References

Affected packages

Git / github.com/traefik/traefik

Affected ranges

Type

GIT

Repo

https://github.com/traefik/traefik

Events

Introduced

Fixed

8b495b45a547f86b6c27fe5db637515b8645a244

Database specific

{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "3.4.1"
        }
    ]
}

Type

GIT

Repo

https://github.com/traefik/traefik

Events

Introduced

Fixed

5f35c888051a2d33998a5cac3bd945b11b555d93

Database specific

{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.11.25"
        }
    ]
}