# alchemy_cms (RubyGems) vulnerabilities

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

Junglewise Threat Intelligence has tracked 4 vulnerabilities in alchemy_cms (RubyGems): 0 in the last 7 days and 2 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-57579, was published on 14 September 2026. Nothing in the last four weeks, down from 1 vulnerability in the four before.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 2
- All time: 4 (0 critical, 0 exploited in the wild)

## About alchemy_cms (RubyGems)

Alchemy CMS is an open-source content management system for Ruby on Rails applications.

## Latest alchemy_cms (RubyGems) vulnerabilities

- [CVE-2026-57579: Alchemy CMS authorization bypass in pages API endpoint](https://junglewise.ai/threats/cve-2026-57579-alchemy-cms-authorization-bypass-in-pages-api-endpoint) (high, CVSS 7.5, published 14 Sep 2026)
- [CVE-2026-86777: AlchemyCMS authentication bypass in /api/nodes endpoint](https://junglewise.ai/threats/cve-2026-86777-alchemycms-authentication-bypass-in-api-nodes-endpoint) (medium, CVSS 5.3, published 9 Sep 2026)
- [CVE-2026-23885: AlchemyCMS: Authenticated Remote Code Execution (RCE) via eval injection in ResourcesHelper](https://junglewise.ai/threats/cve-2026-23885-alchemycms-authenticated-remote-code-execution-rce-via-eval) (low, CVSS 3.1, published 21 Jan 2026)
- [CVE-2018-18307: Withdrawn Advisory: AlchemyCMS is vulnerable to stored XSS via the /admin/pictures image field](https://junglewise.ai/threats/cve-2018-18307-withdrawn-advisory-alchemycms-is-vulnerable-to-stored-xss-via-the) (low, CVSS 3.1, published 14 May 2022)

## Most severe alchemy_cms (RubyGems) vulnerabilities

- [CVE-2026-57579: Alchemy CMS authorization bypass in pages API endpoint](https://junglewise.ai/threats/cve-2026-57579-alchemy-cms-authorization-bypass-in-pages-api-endpoint) (high, CVSS 7.5, published 14 Sep 2026)
- [CVE-2026-86777: AlchemyCMS authentication bypass in /api/nodes endpoint](https://junglewise.ai/threats/cve-2026-86777-alchemycms-authentication-bypass-in-api-nodes-endpoint) (medium, CVSS 5.3, published 9 Sep 2026)
- [CVE-2018-18307: Withdrawn Advisory: AlchemyCMS is vulnerable to stored XSS via the /admin/pictures image field](https://junglewise.ai/threats/cve-2018-18307-withdrawn-advisory-alchemycms-is-vulnerable-to-stored-xss-via-the) (low, CVSS 3.1, published 14 May 2022)
- [CVE-2026-23885: AlchemyCMS: Authenticated Remote Code Execution (RCE) via eval injection in ResourcesHelper](https://junglewise.ai/threats/cve-2026-23885-alchemycms-authenticated-remote-code-execution-rce-via-eval) (low, CVSS 3.1, published 21 Jan 2026)

## Vulnerabilities per week

Nothing in the last four weeks, down from 1 vulnerability in the four before.

| 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 | 1 | 0 | 0 |
| 14 Sep 2026 | 1 | 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, "alchemy_cms (RubyGems) vulnerabilities", https://junglewise.ai/threats/technologies/alchemy-cms, 13 November 2026.