CVE-2025-66419CWE-362

CVE-2025-66419

High · published December 12, 2025

CVSS v3.1
8.8
EPSS
0%
Percentile
22.7
In the wild
Unconfirmed
What it is

⚡ A crafty flaw in MaxKB lets attackers sneak out of their cozy sandbox! 💥 This vulnerability in versions 2.3.1 and below could escalate privileges under just the right conditions. Think of the sandbox as a playroom where kids are only allowed to play with certain toys. This flaw is like a clever kid who finds a way to sneak out and access the entire toy store, opening up all sorts of mischief. An attacker could leverage this vulnerability to escape the sandbox and gain higher privileges, potentially leading to unauthorized access to sensitive enterprise data and control over the AI assistant's functionalities. This risk makes it crucial for organizations using MaxKB to act swiftly to prevent exploitations that could wreak havoc on their systems.

Put simply

Think of the sandbox as a playroom where kids are only allowed to play with certain toys. This flaw is like a clever kid who finds a way to sneak out and access the entire toy store, opening up all sorts of mischief. In specific concurrent scenarios, the MaxKB tool module fails to properly isolate its execution environment, allowing an attacker to execute code outside the intended sandbox restrictions. This breach can lead to a privilege escalation, exposing the system to further attacks.

What to do

An attacker could leverage this vulnerability to escape the sandbox and gain higher privileges, potentially leading to unauthorized access to sensitive enterprise data and control over the AI assistant's functionalities. This risk makes it crucial for organizations using MaxKB to act swiftly to prevent exploitations that could wreak havoc on their systems. Upgrade MaxKB to version 2.4.0 immediately to patch this vulnerability. Additionally, review your security protocols to ensure proper sandboxing practices are upheld and monitor for any unusual activities that might indicate exploitation attempts. You’ve got this! With a quick upgrade and a little vigilance, you can keep your systems secure and running smoothly! 🛡️

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00310 · 22.7th percentile
Weakness
CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Published
2025-12-12T03:15Z
Affected products (1)
ProductVersionsFixed in
maxkb/maxkb< 2.4.02.4.0
References (3)
EPSS history
Timeline
  • 11 DEC 21:39Z
    MaxKB vulnerable to privilege escalation through sandbox bypass
    cvelistv5