CVE-2020-36939CWE-22path-traversal

CVE-2020-36939

High · published January 27, 2026

CVSS v3.1
7.5
EPSS
3%
Percentile
86.9
In the wild
Unconfirmed
What it is

⚡ Unauthenticated attackers can read any file they want, thanks to a sneaky directory traversal flaw in Cassandra Web 0.5.0! 🔥 Think of it like a delivery driver with an incorrect address who can wander into any house on the street, rifling through cabinets and drawers without anyone stopping them — that's how an attacker could access sensitive files here. An attacker could exploit this vulnerability to access critical system files, such as '/etc/passwd', potentially exposing your Apache Cassandra database credentials. This could lead to unauthorized access to your database, data leakage, or worse! It’s not just a bad day; it could be an absolute disaster for your security!

Put simply

Think of it like a delivery driver with an incorrect address who can wander into any house on the street, rifling through cabinets and drawers without anyone stopping them — that's how an attacker could access sensitive files here. This directory traversal vulnerability allows attackers to manipulate path traversal parameters and access files outside the intended directory, bypassing protections that should prevent such actions.

What to do

An attacker could exploit this vulnerability to access critical system files, such as '/etc/passwd', potentially exposing your Apache Cassandra database credentials. This could lead to unauthorized access to your database, data leakage, or worse! It’s not just a bad day; it could be an absolute disaster for your security! Patch your Cassandra Web to version 0.5.1 immediately. It’s crucial to enable Rack::Protection and review your file access controls to prevent unauthorized file reads. Don't wait - secure your system now! You’ve got this! Follow these steps, and you’ll have your system secured in no time! 🛡️

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.02910 · 86.9th percentile
Weakness
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Published
2026-01-27T21:16Z
References (4)
EPSS history
Timeline
  • 27 JAN 15:23Z
    Cassandra Web 0.5.0 - Remote File Read
    cvelistv5