Improper Authentication in Istio

Published: 2020-02-17
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-8595
Exploitation vector Network
Public exploit N/A
Vulnerable software
Web applications / Other software

Vendor Istio

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Improper Authentication

EUVDB-ID: #VU25385

Risk: High


CVE-ID: CVE-2020-8595

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No


The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in the Authentication Policy exact-path matching logic. A remote attacker can bypass authentication process and gain unauthorized access to HTTP paths even if they are configured to be only accessed after presenting a valid JWT token.


Install updates from vendor's website.

Vulnerable software versions

Istio: 1.3 - 1.4.3

CPE2.3 External links

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?