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Vulnerability details: VCID-kjzk-f21e-1bfm
Vulnerability ID VCID-kjzk-f21e-1bfm
Aliases CVE-2026-23885
GHSA-2762-657x-v979
Summary Alchemy is an open source content management system engine written in Ruby on Rails. Prior to versions 7.4.12 and 8.0.3, the application uses the Ruby `eval()` function to dynamically execute a string provided by the `resource_handler.engine_name` attribute in `Alchemy::ResourcesHelper#resource_url_proxy`. The vulnerability exists in `app/helpers/alchemy/resources_helper.rb` at line 28. The code explicitly bypasses security linting with `# rubocop:disable Security/Eval`, indicating that the use of a dangerous function was known but not properly mitigated. Since `engine_name` is sourced from module definitions that can be influenced by administrative configurations, it allows an authenticated attacker to escape the Ruby sandbox and execute arbitrary system commands on the host OS. Versions 7.4.12 and 8.0.3 fix the issue by replacing `eval()` with `send()`.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-95 Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00024 https://api.first.org/data/v1/epss?cve=CVE-2026-23885
epss 0.00024 https://api.first.org/data/v1/epss?cve=CVE-2026-23885
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-2762-657x-v979
cvssv3.1 6.4 https://github.com/AlchemyCMS/alchemy_cms
generic_textual MODERATE https://github.com/AlchemyCMS/alchemy_cms
cvssv3.1 6.4 https://github.com/AlchemyCMS/alchemy_cms/commit/55d03ec600fd9e07faae1138b923790028917d26
generic_textual MODERATE https://github.com/AlchemyCMS/alchemy_cms/commit/55d03ec600fd9e07faae1138b923790028917d26
ssvc Track https://github.com/AlchemyCMS/alchemy_cms/commit/55d03ec600fd9e07faae1138b923790028917d26
cvssv3.1 6.4 https://github.com/AlchemyCMS/alchemy_cms/commit/563c4ce45bf5813b7823bf3403ca1fc32cb769e7
generic_textual MODERATE https://github.com/AlchemyCMS/alchemy_cms/commit/563c4ce45bf5813b7823bf3403ca1fc32cb769e7
ssvc Track https://github.com/AlchemyCMS/alchemy_cms/commit/563c4ce45bf5813b7823bf3403ca1fc32cb769e7
cvssv3.1 6.4 https://github.com/AlchemyCMS/alchemy_cms/releases/tag/v7.4.12
generic_textual MODERATE https://github.com/AlchemyCMS/alchemy_cms/releases/tag/v7.4.12
ssvc Track https://github.com/AlchemyCMS/alchemy_cms/releases/tag/v7.4.12
cvssv3.1 6.4 https://github.com/AlchemyCMS/alchemy_cms/releases/tag/v8.0.3
generic_textual MODERATE https://github.com/AlchemyCMS/alchemy_cms/releases/tag/v8.0.3
ssvc Track https://github.com/AlchemyCMS/alchemy_cms/releases/tag/v8.0.3
cvssv3 6.6 https://github.com/AlchemyCMS/alchemy_cms/security/advisories/GHSA-2762-657x-v979
cvssv3.1 6.4 https://github.com/AlchemyCMS/alchemy_cms/security/advisories/GHSA-2762-657x-v979
cvssv3.1_qr MODERATE https://github.com/AlchemyCMS/alchemy_cms/security/advisories/GHSA-2762-657x-v979
generic_textual MODERATE https://github.com/AlchemyCMS/alchemy_cms/security/advisories/GHSA-2762-657x-v979
ssvc Track https://github.com/AlchemyCMS/alchemy_cms/security/advisories/GHSA-2762-657x-v979
cvssv3.1 6.4 https://github.com/rubysec/ruby-advisory-db/blob/master/gems/alchemy_cms/CVE-2026-23885.yml
generic_textual MODERATE https://github.com/rubysec/ruby-advisory-db/blob/master/gems/alchemy_cms/CVE-2026-23885.yml
cvssv3.1 6.4 https://nvd.nist.gov/vuln/detail/CVE-2026-23885
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2026-23885
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2026-23885
https://github.com/AlchemyCMS/alchemy_cms
55d03ec600fd9e07faae1138b923790028917d26 https://github.com/AlchemyCMS/alchemy_cms/commit/55d03ec600fd9e07faae1138b923790028917d26
563c4ce45bf5813b7823bf3403ca1fc32cb769e7 https://github.com/AlchemyCMS/alchemy_cms/commit/563c4ce45bf5813b7823bf3403ca1fc32cb769e7
CVE-2026-23885 https://nvd.nist.gov/vuln/detail/CVE-2026-23885
CVE-2026-23885.YML https://github.com/rubysec/ruby-advisory-db/blob/master/gems/alchemy_cms/CVE-2026-23885.yml
GHSA-2762-657x-v979 https://github.com/advisories/GHSA-2762-657x-v979
GHSA-2762-657x-v979 https://github.com/AlchemyCMS/alchemy_cms/security/advisories/GHSA-2762-657x-v979
v7.4.12 https://github.com/AlchemyCMS/alchemy_cms/releases/tag/v7.4.12
v8.0.3 https://github.com/AlchemyCMS/alchemy_cms/releases/tag/v8.0.3
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/AlchemyCMS/alchemy_cms
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/AlchemyCMS/alchemy_cms/commit/55d03ec600fd9e07faae1138b923790028917d26
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

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low

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high

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none
Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-01-21T21:08:44Z/ Found at https://github.com/AlchemyCMS/alchemy_cms/commit/55d03ec600fd9e07faae1138b923790028917d26
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/AlchemyCMS/alchemy_cms/commit/563c4ce45bf5813b7823bf3403ca1fc32cb769e7
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-01-21T21:08:44Z/ Found at https://github.com/AlchemyCMS/alchemy_cms/commit/563c4ce45bf5813b7823bf3403ca1fc32cb769e7
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/AlchemyCMS/alchemy_cms/releases/tag/v7.4.12
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-01-21T21:08:44Z/ Found at https://github.com/AlchemyCMS/alchemy_cms/releases/tag/v7.4.12
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/AlchemyCMS/alchemy_cms/releases/tag/v8.0.3
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-01-21T21:08:44Z/ Found at https://github.com/AlchemyCMS/alchemy_cms/releases/tag/v8.0.3
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/AlchemyCMS/alchemy_cms/security/advisories/GHSA-2762-657x-v979
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-01-21T21:08:44Z/ Found at https://github.com/AlchemyCMS/alchemy_cms/security/advisories/GHSA-2762-657x-v979
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/rubysec/ruby-advisory-db/blob/master/gems/alchemy_cms/CVE-2026-23885.yml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2026-23885
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.07261
EPSS Score 0.00024
Published At June 11, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-11T16:41:59.797765+00:00 Vulnrichment Import https://github.com/cisagov/vulnrichment/blob/develop/2026/23xxx/CVE-2026-23885.json 38.6.0