HIGH🇬🇧 English

CVE-2026-48020

CVSS 7.8v4.0pub. 2026-06-23upd. 2026-06-30

Traefik is an HTTP reverse proxy and load balancer. Prior to 2.11.48, 3.6.19, and 3.7.3, there is a high severity vulnerability in Traefik's StripPrefix middleware that allows an unauthenticated attacker to bypass route-level authentication and authorization. When a public router matches on a PathPrefix rule and applies the StripPrefix middleware, a request path containing .. or its percent-encoded form %2e%2e can match the public route at routing time and then, after the prefix is stripped and the path is normalized, resolve to a path served by a separate, authenticated router. As a result, an attacker can reach protected backend paths — such as admin or internal configuration endpoints — without satisfying the authentication middleware attached to the protected router. This vulnerability is fixed in 2.11.48, 3.6.19, and 3.7.3.

oryginał EN
CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
  • Traefik

    APP
    Traefik
    < 2.11.483.0.0 – 3.6.19 (bez)3.7.0 – 3.7.3 (bez)
🔵
ZWERYFIKUJ U PRODUCENTA
Brak jednoznacznych danych o patchu. Sprawdź referencje od producenta.
Tagi
Auth BypassPath Traversal
CWE
Referencje

Powiązane podatności

CVE-2024-45410CRITICAL9.8PL ✓ten sam produkt

Traefik: manipulacja nagłówkami HTTP/1.1 poprzez mechanizm hop-by-hop

CVE-2026-53622HIGH7.8ten sam produkt

Traefik is an HTTP reverse proxy and load balancer. Prior to 3.7.3, there is a critical vulnerability in Traef...

CVE-2026-48491HIGH7.8ten sam produkt

Traefik is an HTTP reverse proxy and load balancer. From 3.7.0 until 3.7.3, there is a high severity vulnerabi...

CVE-2026-35051HIGH7.8ten sam produkt

Traefik is an HTTP reverse proxy and load balancer. Prior to versions 2.11.43, 3.6.14, and 3.7.0-rc.2, there i...

CVE-2026-39858HIGH7.8ten sam produkt

Traefik is an HTTP reverse proxy and load balancer. Prior to versions 2.11.43, 3.6.14, and 3.7.0-rc.2, there i...

CVE-2026-48020 — HIGH 7.8 | CVEbaza.pl