CVE-2024-1729 Timing Attack Vulnerability in gradio-app/gradio
Attackers can bypass authentication in Gradio by exploiting timing differences in password validation to guess credentials and gain unauthorized access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-1729?
CVE-2024-1729 is a medium-severity authentication bypass vulnerability in Gradio Project Gradio, published on 29 Mar 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A timing attack vulnerability exists in the gradio-app/gradio repository, specifically within the login function in routes.py. The vulnerability arises from the use of a direct comparison operation (`app.auth[username] == password`) to validate user credentials, which can be exploited to guess passwords based on response times. Successful exploitation of this vulnerability could allow an attacker to bypass authentication mechanisms and gain unauthorized access.
Weakness: CWE-367
Which versions are affected by CVE-2024-1729?
3 open source packages ship an affected version, including gradio. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
gradio PyPI | All versions | 4.19.2 |
gradio PyPI | All versions | 4.19.2 |
gradio PyPI | All versions | 4.19.2 |
Products include Gradio Project Gradio.
How do I fix CVE-2024-1729?
Upgrade gradio to 4.19.2 or later.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2024-1729 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-1729 exists.
Other vulnerabilities in Gradio Project Gradio
- CVE-2024-39236 Withdrawn Advisory: Gradio was discovered to contain a code injection vulnerability via the component /gradio/component_meta.py
- CVE-2023-6572 Command Injection in gradio-app/gradio
- CVE-2022-24770 Improper Neutralization of Formula Elements in a CSV File in Gradio Flagging
- CVE-2026-49119 Gradio < 6.16.0 Path Traversal via FileExplorer.preprocess()
- CVE-2025-23042 Gradio Blocked Path ACL Bypass Vulnerability
Sources
Also known as GHSA-hmx6-r76c-85g9, PYSEC-2026-1416.