CVE-2026-33328

A flaw was found in libvips, an image processing library. On 32-bit systems, a vulnerability in the gifload operation could lead to an integer overflow due to incorrectly determined image dimensions. This could allow a local attacker to cause the application to crash, resulting in a denial of...

CVE-2026-35590

A flaw was found in libvips. The EXIF decoder did not properly verify the range of EXIF tag groups, which could lead to a null pointer dereference. A local user could exploit this by providing specially crafted EXIF data, causing the application to crash and resulting in a denial of service...

CVE-2026-33327

A flaw was found in libvips, an image processing library. The vipsload operation, responsible for loading images, could incorrectly calculate image dimensions. This error leads to an integer overflow, which subsequently causes a heap-based buffer overflow. A local attacker with low privileges cou...

CVE-2026-35591

A flaw was found in libvips, an image processing library. The tiffload operation, which handles loading TIFF images, could incorrectly identify the number of channels in embedded JPEG or JPEG2000 tiles. This vulnerability may allow a local attacker with low privileges to trigger a buffer overflow...

K000162741: Ruby on Rails Action Pack vulnerability CVE-2026-66066

Security Advisory Description 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...

Arbitrary File Read

Action Pack Active Storage is vulnerable to Arbitrary File Read. The vulnerability is due to unsafe libvips operations being permitted on untrusted image uploads, allowing attackers to craft malicious images that read arbitrary files accessible to the Rails process and expose sensitive applicatio...

CVE-2026-66066

A flaw was found in Active Storage, a component of Action Pack. An unauthenticated attacker can exploit this vulnerability by crafting a malicious file upload. This allows the attacker to invoke unsafe libvips operations, leading to the ability to read arbitrary files on the system including...

CVE-2026-66066

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...

EUVD-2026-51270

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...

CVE-2026-66066 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...

CVE-2026-66066 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...

CVE-2026-66066

CVE-2026-66066 affects Ruby on Rails with Active Storage using libvips. In vulnerable releases (prior to fixed versions on each line), Active Storage does not disable unsafe libvips operations during image processing, allowing an unauthenticated attacker uploading crafted images to read arbitrary...

CVE-2026-66066 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...

CVE-2026-66066

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...

GHSA-XR9X-R78C-5HRM Active Storage has possible arbitrary file read and remote code execution in Active Storage variant processing

Impact In its default configuration, a Rails application that displays image variants may allow an unauthenticated attacker to read arbitrary files from the server, including the process environment. That environment typically holds secretkeybase and often credentials for external systems, which...

KindaRails2Shell: CVE-2026-66066, Critical Arbitrary File Read and Possible Remote Code Execution in Ruby on Rails

Overview On July 29, 2026, the Ruby on Rails project published a security advisory for CVE-2026-66066, a critical vulnerability affecting Active Storage image processing when used in conjunction with the libvips image processing library. The vulnerability has a CVSSv4 score of 9.5 and is classifi...

Files or Directories Accessible to External Parties

Overview Affected versions of this package are vulnerable to Files or Directories Accessible to External Parties through the Vips analyzer and Vips transformer in vips.rb. An attacker can read files from the server, including process environment variables, by uploading a crafted image and causing...

PT-2026-66655

Impact In its default configuration, a Rails application that displays image variants may allow an unauthenticated attacker to read arbitrary files from the server, including the process environment. That environment typically holds secret key base and often credentials for external systems, whic...

Exploit for CVE-2026-66066

🚨 CVE-2026-66066 — KindaRails2Shell Pre-Authenticatio...

Critical Rails Flaw Could Let Unauthenticated Attackers Read Server Files via Image Uploads

Ruby on Rails has released fixes for a critical Active Storage vulnerability that could let unauthenticated attackers read arbitrary files from application servers through crafted image uploads. Tracked as CVE-2026-66066 CVSS score: 9.5, the flaw can expose the Rails process environment and secre...