# sinatra (RubyGems) vulnerabilities

Source: https://junglewise.ai/threats/technologies/sinatra  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 13 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/sinatra.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 6 vulnerabilities in sinatra (RubyGems): 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2025-61921, was published on 10 October 2025.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 0
- All time: 6 (0 critical, 0 exploited in the wild)

## About sinatra (RubyGems)

Ruby web framework for building web applications and APIs with minimal dependencies.

## Latest sinatra (RubyGems) vulnerabilities

- [CVE-2025-61921: Sinatra is vulnerable to ReDoS through ETag header value generation](https://junglewise.ai/threats/cve-2025-61921-sinatra-is-vulnerable-to-redos-through-etag-header-value) (medium, CVSS 4, published 10 Oct 2025)
- [CVE-2024-21510: Sinatra vulnerable to Reliance on Untrusted Inputs in a Security Decision](https://junglewise.ai/threats/cve-2024-21510-sinatra-vulnerable-to-reliance-on-untrusted-inputs-in-a-security) (low, CVSS 3.1, published 1 Nov 2024)
- [CVE-2022-45442: Sinatra vulnerable to Reflected File Download attack](https://junglewise.ai/threats/cve-2022-45442-sinatra-vulnerable-to-reflected-file-download-attack) (low, CVSS 3.1, published 30 Nov 2022)
- [CVE-2022-29970: sinatra does not validate expanded path matches](https://junglewise.ai/threats/cve-2022-29970-sinatra-does-not-validate-expanded-path-matches) (low, CVSS 3.1, published 3 May 2022)
- [CVE-2018-11627: Sinatra Cross-site Scripting vulnerability](https://junglewise.ai/threats/cve-2018-11627-sinatra-cross-site-scripting-vulnerability) (low, CVSS 3, published 5 Jun 2018)
- [CVE-2018-7212: Sinatra Path Traversal vulnerability](https://junglewise.ai/threats/cve-2018-7212-sinatra-path-traversal-vulnerability) (low, CVSS 3, published 20 Feb 2018)

## Most severe sinatra (RubyGems) vulnerabilities

- [CVE-2025-61921: Sinatra is vulnerable to ReDoS through ETag header value generation](https://junglewise.ai/threats/cve-2025-61921-sinatra-is-vulnerable-to-redos-through-etag-header-value) (medium, CVSS 4, published 10 Oct 2025)
- [CVE-2022-29970: sinatra does not validate expanded path matches](https://junglewise.ai/threats/cve-2022-29970-sinatra-does-not-validate-expanded-path-matches) (low, CVSS 3.1, published 3 May 2022)
- [CVE-2022-45442: Sinatra vulnerable to Reflected File Download attack](https://junglewise.ai/threats/cve-2022-45442-sinatra-vulnerable-to-reflected-file-download-attack) (low, CVSS 3.1, published 30 Nov 2022)
- [CVE-2024-21510: Sinatra vulnerable to Reliance on Untrusted Inputs in a Security Decision](https://junglewise.ai/threats/cve-2024-21510-sinatra-vulnerable-to-reliance-on-untrusted-inputs-in-a-security) (low, CVSS 3.1, published 1 Nov 2024)
- [CVE-2018-11627: Sinatra Cross-site Scripting vulnerability](https://junglewise.ai/threats/cve-2018-11627-sinatra-cross-site-scripting-vulnerability) (low, CVSS 3, published 5 Jun 2018)
- [CVE-2018-7212: Sinatra Path Traversal vulnerability](https://junglewise.ai/threats/cve-2018-7212-sinatra-path-traversal-vulnerability) (low, CVSS 3, published 20 Feb 2018)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Other RubyGems technologies

- [actionpack (RubyGems)](https://junglewise.ai/threats/technologies/actionpack): 77 vulnerabilities
- [nokogiri (RubyGems)](https://junglewise.ai/threats/technologies/nokogiri): 69 vulnerabilities
- [rack (RubyGems)](https://junglewise.ai/threats/technologies/rack): 55 vulnerabilities
- [activerecord (RubyGems)](https://junglewise.ai/threats/technologies/rubygems-activerecord): 26 vulnerabilities
- [rubygems-update (RubyGems)](https://junglewise.ai/threats/technologies/rubygems-update): 25 vulnerabilities
- [puppet (RubyGems)](https://junglewise.ai/threats/technologies/puppet): 23 vulnerabilities
- [activesupport (RubyGems)](https://junglewise.ai/threats/technologies/activesupport): 20 vulnerabilities
- [actionview (RubyGems)](https://junglewise.ai/threats/technologies/actionview): 19 vulnerabilities
- [activestorage (RubyGems)](https://junglewise.ai/threats/technologies/activestorage): 19 vulnerabilities
- [camaleon_cms (RubyGems)](https://junglewise.ai/threats/technologies/camaleon-cms): 19 vulnerabilities
- [rails-html-sanitizer (RubyGems)](https://junglewise.ai/threats/technologies/rails-html-sanitizer): 18 vulnerabilities
- [loofah (RubyGems)](https://junglewise.ai/threats/technologies/loofah): 17 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "sinatra (RubyGems) vulnerabilities", https://junglewise.ai/threats/technologies/sinatra, 13 November 2026.