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GHSA-xh2x-3mrm-fwqm CVE-2024-47870 PYSEC-2024-218

Gradio has a race condition in update_root_in_config may redirect user traffic

High PyPI
Severity
0.0 / 10
High · CVSS 4.0
Exploit chance (EPSS)
0.37%
Chance of exploitation in the next 30 days. Higher than 31.16% of scored vulnerabilities.
Known exploited
No
Not in CISA's catalog
Weakness
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Fix
5.0.0
Upgrade gradio to this version or later

Description

Impact

What kind of vulnerability is it? Who is impacted?

This vulnerability involves a race condition in the update_root_in_config function, allowing an attacker to modify the root URL used by the Gradio frontend to communicate with the backend. By exploiting this flaw, an attacker can redirect user traffic to a malicious server. This could lead to the interception of sensitive data such as authentication credentials or uploaded files. This impacts all users who connect to a Gradio server, especially those exposed to the internet, where malicious actors could exploit this race condition.

Patches

Yes, please upgrade to gradio>=5 to address this issue.

Affected versions

PyPI

PackageVulnerableFixed in
gradio
< 5.0.0
5.0.0

How to fix

Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.

gradio PyPI → 5.0.0

pip
pip install --upgrade "gradio>=5.0.0"
poetry
poetry add "gradio>=5.0.0"
uv
uv add "gradio>=5.0.0"

Severity breakdown

CVSS 4.0 0.0

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N

Attack vector
Network
Attack complexity
Low
Attack requirements
None
Privileges required
None
User interaction
None
Confidentiality (vulnerable system)
Low
Integrity (vulnerable system)
Low
Availability (vulnerable system)
High
Confidentiality (subsequent systems)
None
Integrity (subsequent systems)
None
Availability (subsequent systems)
None

CVSS 3.1 7.0

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
High

Weakness

CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

How to prevent it
  • Architecture and Design: In languages that support it, use synchronization primitives. Only wrap these around critical code to minimize the impact on performance.
  • Architecture and Design: Use thread-safe capabilities such as the data access abstraction in Spring.
  • Architecture and Design: Minimize the usage of shared resources in order to remove as much complexity as possible from the control flow and to reduce the likelihood of unexpected conditions occurring. Additionally, this will minimize the amount of synchronization necessary and may even help to reduce the likelihood of a denial of service where an attacker may be able to repeatedly trigger a critical section (CWE-400).
  • Implementation: When using multithreading and operating on shared variables, only use thread-safe functions.
  • Implementation: Use atomic operations on shared variables. Be wary of innocent-looking constructs such as "x++". This may appear atomic at the code layer, but it is actually non-atomic at the instruction layer, since it involves a read, followed by a computation, followed by a write.
  • Implementation: Use a mutex if available, but be sure to avoid related weaknesses such as CWE-412.
  • Implementation: Avoid double-checked locking (CWE-609) and other implementation errors that arise when trying to avoid the overhead of synchronization.
  • Implementation: Disable interrupts or signals over critical parts of the code, but also make sure that the code does not go into a large or infinite loop.
  • Implementation: Use the volatile type modifier for critical variables to avoid unexpected compiler optimization or reordering. This does not necessarily solve the synchronization problem, but it can help.
  • Architecture and Design, Operation: Run your code using the lowest privileges that are required to accomplish the necessary tasks [REF-76]. If possible, create isolated accounts with limited privileges that are only used for a single task. That way, a successful attack will not immediately give the attacker access to the rest of the software or its environment. For example, database applications rarely need to run as the database administrator, especially in day-to-day operations.

References

Timeline

  1. Published
  2. Last updated by the source
  3. Latest EPSS score
AdvisorySeverityWhy it's related
GHSA-j36p-7w88-g82j
Gradio FileExplorer preprocess path traversal allows files outside root_dir to reach callbacks
High Also affects gradio
GHSA-6655-8ph2-63j3
Gradio: Audio cache key ignores metadata when saving numpy audio outputs
Low Also affects gradio
GHSA-7hp7-4p35-3cx2
Gradio contains a cookie injection vulnerability
Medium Also affects gradio
GHSA-jmh7-g254-2cq9
Gradio has SSRF via Malicious `proxy_url` Injection in `gr.load()` Config Processing
High Also affects gradio
GHSA-pfjf-5gxr-995x
Gradio has an Open Redirect in its OAuth Flow
Medium Also affects gradio
GHSA-39mp-8hj3-5c49
Gradio is Vulnerable to Absolute Path Traversal on Windows with Python 3.13+
High Also affects gradio
GHSA-h3h8-3v2v-rg7m
Gradio: Mocked OAuth Login Exposes Server Credentials and Uses Hardcoded Session Secret
Medium Also affects gradio
GHSA-8jw3-6x8j-v96g
Gradio Allows Unauthorized File Copy via Path Manipulation
High Also affects gradio
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