Versions of the package sinatra from 0.0.0 are vulnerable to Reliance on Untrusted Inputs in a Security Decision via the X-Forwarded-Host (XFH) header. When making a request to a method with redirect applied, it is possible to trigger an Open Redirect Attack by inserting an arbitrary address into this header. If used for caching purposes, such as with servers like Nginx, or as a reverse proxy, without handling the X-Forwarded-Host header, attackers can potentially exploit Cache Poisoning or Routing-based SSRF.

Affected Packages

RubyGems sinatra

Affected versions: 0 (fixed in 4.1.0)

Related CVEs

CVE-2024-21510

Key Information

GHSA ID

GHSA-hxx2-7vcw-mqr3

Published

November 1, 2024 6:30 AM

Last Modified

November 20, 2024 4:38 PM

CVSS Score

5.0 /10

Primary Ecosystem

RubyGems

Primary Package

sinatra

GitHub Reviewed

✓ Yes

Dataset

Last updated: June 15, 2025 6:24 AM

Data from GitHub Advisory Database. This information is provided for research and educational purposes.