Nixpkgs security tracker
9.5 CRITICAL
- CVSS version (CVSS): 4.0
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): Low (L)
- Attack Requirement (AT): Present (P)
- Privileges Required (PR): None (N)
- User Interaction (UI): None (N)
- Vulnerable System Impact Confidentiality (VC): High (H)
- Vulnerable System Impact Integrity (VI): High (H)
- Vulnerable System Impact Availability (VA): High (H)
- Subsequent System Impact Confidentiality (SC): High (H)
- Subsequent System Impact Integrity (SI): High (H)
- Subsequent System Impact Availability (SA): High (H)
- Modified Attack Vector (MAV): Network (N)
- Modified Attack Complexity (MAC): Low (L)
- Modified Attack Requirement (MAT): Present (P)
- Modified Privileges Required (MPR): None (N)
- Modified User Interaction (MUI): None (N)
- Modified Vulnerable System Impact Confidentiality (MVC): High (H)
- Modified Vulnerable System Impact Integrity (MVI): High (H)
- Modified Vulnerable System Impact Availability (MVA): High (H)
- Modified Subsequent System Impact Confidentiality (MSC): High (H)
- Modified Subsequent System Impact Integrity (MSI): High (H)
- Modified Subsequent System Impact Availability (MSA): High (H)
- Safety (S): Not Defined (X)
- Automatable (AU): Not Defined (X)
- Recovery (R): Not Defined (X)
- Value Density (V): Not Defined (X)
- Vulnerability Response Effort (RE): Not Defined (X)
- Provider Urgency (U): Not Defined (X)
- Confidentiality Req. (CR): Not Defined (X)
- Integrity Req. (IR): Not Defined (X)
- Availability Req. (AR): Not Defined (X)
- Exploit Maturity (E): Not Defined (X)
by @LeSuisse Activity log
- Created suggestion
-
@LeSuisse
ignored
10 packages
- rails-new
- grails
- rubyPackages_4_0.rails-html-sanitizer
- rubyPackages_3_4.rails-html-sanitizer
- rubyPackages_4_0.rails-dom-testing
- rubyPackages_3_4.rails-dom-testing
- rubyPackages_3_3.rails-dom-testing
- rubyPackages.rails-html-sanitizer
- rubyPackages.rails-dom-testing
- rubyPackages_3_3.rails-html-sanitizer
- @LeSuisse accepted
- @LeSuisse published on GitHub
Action Pack: Possible arbitrary file read and remote code execution in Active Storage variant processing
Action Pack is a framework for handling and responding to web requests. In versions prior to 7.2.3.2, 8.0.5.1 and 8.1.3.1, Active Storage does not disable libvips operations marked unsafe for untrusted content, allowing a crafted upload to invoke such an operation. Consuming applications are affected when configured to use libvips and accept image uploads from untrusted users. An unauthenticated attacker may exploit this behavior to read arbitrary files accessible to the Rails process, including environment variables and application secrets. Exposure of credentials such as secret_key_base or external-service tokens may enable remote code execution or lateral movement. This issue has been fixed in versions 7.2.3.2, 8.0.5.1 and 8.1.3.1.
References
-
https://github.com/rails/rails/security/advisories/GHSA-xr9x-r78c-5hrm x_refsource_CONFIRM
-
https://github.com/rails/rails/releases/tag/v7.2.3.2 x_refsource_MISC
-
https://github.com/rails/rails/releases/tag/v8.0.5.1 x_refsource_MISC
-
https://github.com/rails/rails/releases/tag/v8.1.3.1 x_refsource_MISC
-
https://thehackernews.com/2026/07/critical-rails-flaw-could-let.html x_refsource_MISC
Affected products
- ==< 7.2.3.2
- ==>= 8.0.0.beta1, < 8.0.5.1
- ==>= 8.1.0.beta1, < 8.1.3.1
Matching in nixpkgs
Ignored packages (10)
pkgs.grails
Full stack, web application framework for the JVM
pkgs.rails-new
Generate new Rails applications without having to install Ruby
pkgs.rubyPackages.rails-dom-testing
None
pkgs.rubyPackages.rails-html-sanitizer
None
pkgs.rubyPackages_3_3.rails-dom-testing
None
pkgs.rubyPackages_3_4.rails-dom-testing
None
pkgs.rubyPackages_4_0.rails-dom-testing
None
pkgs.rubyPackages_3_3.rails-html-sanitizer
None
pkgs.rubyPackages_3_4.rails-html-sanitizer
None