CVE-2026-65600 — CVE & Security Advisory Radar

🎯 CVE-2026-65600 HIGH 7.8 🔥 EPSS 41% 🧪 PoC 🇪🇺 EUVD

📄 .md Alle CVEs anzeigen ✕

CVE-2026-65600 | Traefik versions <= v2.11.51, >= v3.6.0 <= v3.6.22, and >= v3.7.0 <= v3.7.6 contain an authentication bypass via path traversal in the ReplacePathRegex middleware. When ReplacePathRegex is configured with a regex that captures user-controlled path segments without a mandatory path separator (e.g. regex "^/api(.*)", replacement "/$1"), the middleware forwards the replaced path to the backend without validating that it matches its normalized form. An unauthenti

Traefik versions <= v2.11.51, >= v3.6.0 <= v3.6.22, and >= v3.7.0 <= v3.7.6 contain an authentication bypass via path traversal in the ReplacePathRegex middleware. When ReplacePathRegex is configured with a regex that captures user-controlled path segments without a mandatory path separator (e.g. regex "^/api(.*)", replacement "/$1"), the middleware forwards the replaced path to the backend without validating that it matches its normalized form. An unauthenticated remote attacker can send a crafted request (e.g. GET /api../admin) that produces an un-normalized path such as /../admin, which a backend that normalizes paths resolves to a protected route, bypassing authentication middleware. Fixed in v2.11.52, v3.6.23, and v3.7.7.

Klassifikation & Betroffenheit:

traefik traefik 3.6.0 <3.6.23traefik 3.7.0 <3.7.7traefik 0 <2.11.52traefik traefik *

Improper Authentication 🎯 High

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

🛡️ Empfohlene Mitigation: Use an authentication framework or library such as the OWASP ESAPI Authentication feature.

Vollständige Definition bei MITRE ➔

⚔️ Typische Angriffsmuster (CAPEC):

CAPEC-22 · Exploiting Trust in Client (High) CAPEC-57 · Utilizing REST's Trust in the System Res… (Very High) CAPEC-114 · Authentication Abuse (Medium) CAPEC-115 · Authentication Bypass (Medium) CAPEC-151 · Identity Spoofing (Medium) CAPEC-194 · Fake the Source of Data (Medium) CAPEC-593 · Session Hijacking (Very High) CAPEC-633 · Token Impersonation (Medium)

🎯 ATT&CK-Techniken (Kill-Chain-Verhalten):

T1040 · Network Sniffing T1548 · Abuse Elevation Control Mechanism T1185 · Browser Session Hijacking T1550.001 · Use Alternate Authentication Mater… T1563 · Remote Service Session Hijacking T1134 · Access Token Manipulation

🧩 Ähnliche Schwachstellen (Hersteller/Klasse/Score-Band):

CVE-2025-32431 8.8 CVE-2023-54365 8.7 CVE-2022-46153 8.1 CVE-2026-67309 7.8 CVE-2026-54763 7.8

🩹 Patch verfügbar (OSV):

🩹 00d92a043fdee9c562f4b1fda9c2d6f359a25eb2 (Commit) 🩹 84d4e8b139d1ac5e5b2d250fff95baed5ba0584f (Commit)

📚 Referenzen & Quellen:

🇪🇺 Original-Eintrag (ENISA EUVD) 🇺🇸 NVD-Eintrag

Ausnutzungs-Zeitleiste:

Reserviert 2026

Veröffentlicht 07/2026

Heute 05.09.

CVSS-Vektor-Analyse: 7.8

AV · Angriffsvektor Netzwerk

AC · Komplexität Gering

PR · Privilegien Keine

UI · Interaktion Keine

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

Veröffentlicht:22.07.2026

Aktualisiert:06.08.2026 15:42

Assigner (CNA):VulnCheck

EUVD-ID:EUVD-2026-47644

Quellen: 🇪🇺 EUVD-Datenbank (ENISA) + 🇺🇸 NVD-Anreicherung · 24-h-Cache

CWE-287: Improper Authentication ✓ Offizieller Patch / Advisory verfügbar

💡 Gegenmaßnahme: Sicherheits-Update des Herstellers zeitnah einspielen und Netzwerksegmentierung prüfen.

Tier	2026-08-29	2026-09-05
≥90 %	4	0
≥50 %	4	0
≥10 %	3	0
<10 %	304	222

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