CVE-2025-6391CWE-532

JSON Web Token (JWT) Exposure in Log Files

High · published July 17, 2025

CVSS v4.0
7.1
EPSS
0%
Percentile
17.9
In the wild
Unconfirmed
What it is

🚨 An unguarded log file is the gateway to chaos! Brocade ASCG versions before 3.3.0 are exposing unencrypted JSON Web Tokens (JWT) in log files, leaving security wide open for attackers! 🔥 Think of it like a restaurant that prints out receipts with all your personal data and leaves them on the counter for anyone to see—super risky! If an attacker can access these logs, they're flipping through a treasure trove of sensitive session information without even needing a reservation. An attacker with access to these logs could easily snatch unencrypted tokens, leading to unauthorized access, session hijacking, and potentially devastating information disclosure. This could mean your users' data is at serious risk—imagine a thief having the keys to your digital kingdom!

Put simply

Think of it like a restaurant that prints out receipts with all your personal data and leaves them on the counter for anyone to see—super risky! If an attacker can access these logs, they're flipping through a treasure trove of sensitive session information without even needing a reservation. This vulnerability allows attackers to retrieve sensitive JSON Web Tokens logged by Brocade ASCG versions before 3.3.0, which can be exploited to gain unauthorized access to user sessions or sensitive information.

What to do

An attacker with access to these logs could easily snatch unencrypted tokens, leading to unauthorized access, session hijacking, and potentially devastating information disclosure. This could mean your users' data is at serious risk—imagine a thief having the keys to your digital kingdom! To safeguard your system, upgrade to Brocade ASCG version 3.3.0 or later as soon as possible to eliminate this logging issue. Additionally, consider implementing logging practices that avoid storing sensitive information in plaintext. Don't forget to regularly audit your logs for any suspicious access! You've got this! By taking these steps, you'll be on your way to locking down your security like a pro! 🛡️

The record
Technical detail
CVSS v4.0
7.1 · HIGH
Vector
CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00268 · 17.9th percentile
Weakness
CWE-532 · Insertion of Sensitive Information into Log File
Published
2025-07-17T21:45Z
EPSS history
Timeline
  • 17 JUL 21:45Z
    JSON Web Token (JWT) Exposure in Log Files
    cvelistv5