Loading...
Skip to main content
GeekWala

CVE-2024-21510 — Vulnerability in sinatra — CVE Details

MEDIUM

Sinatra vulnerable to Reliance on Untrusted Inputs in a Security Decision

Published November 1, 2024Updated September 10, 2026Source: osv

Summary

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.

Advisory Timeline

  • First published November 1, 2024 (710 days ago).
  • Last revised September 10, 2026 — 678 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Bundler
Update sinatra to 4.1.0 or later
gem install sinatra -v 4.1.0

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: rubygems (1).

PackageEcosystemAffectedFixed In
sinatra
rubygems
0.1.0, 0.1.5, 0.1.6, 0.1.7 (+100 more)4.1.0

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 5.4 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

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

References

Frequently Asked Questions

What is CVE-2024-21510?
Sinatra vulnerable to Reliance on Untrusted Inputs in a Security Decision This vulnerability has been assigned a severity rating of MEDIUM (CVSS score: 5.4/10).
How do I check if my project is affected by CVE-2024-21510?
CVE-2024-21510 affects sinatra. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2024-21510 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
5.4

Exploitation requires specific conditions or has limited impact. Remediate within weeks.

Also Known As

GHSA-hxx2-7vcw-mqr3

Related CVEs

More RubyGems advisories

Check if you're affected

Scan your dependencies to see if this vulnerability affects your projects.

Scan Your Dependencies