sinatra-3.2.0.gem: 2 vulnerabilities (highest severity is: 5.4)

[mend-bolt-for-github]

Vulnerable Library - sinatra-3.2.0.gem

Sinatra is a DSL for quickly creating web applications in Ruby with minimal effort.

Library home page: https://rubygems.org/gems/sinatra-3.2.0.gem

Path to dependency file: /Gemfile.lock

Path to vulnerable library: /Gemfile.lock

Vulnerabilities

Vulnerability	Severity	CVSS	Dependency	Type	Fixed in (sinatra version)	Remediation Possible**
CVE-2024-21510	Medium	5.4	sinatra-3.2.0.gem	Direct	sinatra - 4.1.0	❌
CVE-2025-61921	Medium	5.3	sinatra-3.2.0.gem	Direct	sinatra - 4.2.0	❌

**In some cases, Remediation PR cannot be created automatically for a vulnerability despite the availability of remediation

Details

CVE-2024-21510

Vulnerable Library - sinatra-3.2.0.gem

Sinatra is a DSL for quickly creating web applications in Ruby with minimal effort.

Library home page: https://rubygems.org/gems/sinatra-3.2.0.gem

Path to dependency file: /Gemfile.lock

Path to vulnerable library: /Gemfile.lock

Dependency Hierarchy:

• ❌ sinatra-3.2.0.gem (Vulnerable Library)

Found in base branch: source

Vulnerability Details

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.

Publish Date: 2024-11-01

URL: CVE-2024-21510

CVSS 3 Score Details (5.4)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: Low
  • Integrity Impact: Low
  • Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-hxx2-7vcw-mqr3

Release Date: 2024-11-01

Fix Resolution: sinatra - 4.1.0

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CVE-2025-61921

Vulnerable Library - sinatra-3.2.0.gem

Sinatra is a DSL for quickly creating web applications in Ruby with minimal effort.

Library home page: https://rubygems.org/gems/sinatra-3.2.0.gem

Path to dependency file: /Gemfile.lock

Path to vulnerable library: /Gemfile.lock

Dependency Hierarchy:

• ❌ sinatra-3.2.0.gem (Vulnerable Library)

Found in base branch: source

Vulnerability Details

Sinatra is a domain-specific language for creating web applications in Ruby. In versions prior to 4.2.0, there is a denial of service vulnerability in the "If-Match" and "If-None-Match" header parsing component of Sinatra, if the "etag" method is used when constructing the response. Carefully crafted input can cause "If-Match" and "If-None-Match" header parsing in Sinatra to take an unexpected amount of time, possibly resulting in a denial of service attack vector. This header is typically involved in generating the "ETag" header value. Any applications that use the "etag" method when generating a response are impacted. Version 4.2.0 fixes the issue.

Publish Date: 2025-10-10

URL: CVE-2025-61921

CVSS 3 Score Details (5.3)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: None
  • Integrity Impact: None
  • Availability Impact: Low

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-mr3q-g2mv-mr4q

Release Date: 2025-10-10

Fix Resolution: sinatra - 4.2.0

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