The vulnerability affects the libvips image processing library in the Active Storage component of the Ruby on Rails software framework. This allows attackers to execute arbitrary code and gain unauthorized access to protected information.

The vulnerability of the libvips image processing library, a component of the Active Storage framework in the Ruby on Rails software platform, relates to insecure resource initialization. Exploiting this vulnerability could allow an attacker to execute arbitrary code remotely and gain unauthorize...

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...

Exploit for CVE-2026-66066

rails-activestorage-vips-audit An Agent Skillhttps://agent...

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...

GHSA-F88M-G3JW-G9CJ sharp inherited vulnerabilities in libvips: CVE-2026-33327, CVE-2026-33328, CVE-2026-35590, CVE-2026-35591

Impact A number of vulnerabilities, two rated as "High" severity using CVSSv4, have been discovered and fixed in the upstream libvips dependency. Those processing untrusted input with versions of sharp prior to 0.35.0 are affected. Patches Using prebuilt binaries provided by sharp? Most people re...

Integer Overflow

Overview org.webjars.npm:sharp is a High performance Node.js image processing, the fastest module to resize JPEG, PNG, WebP, GIF, AVIF and TIFF images Affected versions of this package are vulnerable to Integer Overflow in the bundled libvips GIF loader VipsForeignLoadNsgif, which can miscompute...

Out-of-bounds Read

Overview org.webjars.npm:sharp is a High performance Node.js image processing, the fastest module to resize JPEG, PNG, WebP, GIF, AVIF and TIFF images Affected versions of this package are vulnerable to Out-of-bounds Read and null pointer dereference in the bundled libvips EXIF decoder, which doe...

NPM: sharp inherited vulnerabilities in libvips: CVE-2026-33327, CVE-2026-33328, CVE-2026-35590, CVE-2026-35591

NPM: sharp inherited vulnerabilities in libvips: CVE-2026-33327, CVE-2026-33328, CVE-2026-35590, CVE-2026-35591 discovered by ? in WordPress Npm sharp versions 0.35.0...

sharp inherited vulnerabilities in libvips: CVE-2026-33327, CVE-2026-33328, CVE-2026-35590, CVE-2026-35591

Impact A number of vulnerabilities, two rated as "High" severity using CVSSv4, have been discovered and fixed in the upstream libvips dependency. Those processing untrusted input with versions of sharp prior to 0.35.0 are affected. Patches Using prebuilt binaries provided by sharp? Most people re...

Out-of-bounds Read

Overview Affected versions of this package are vulnerable to Out-of-bounds Read and null pointer dereference in the bundled libvips EXIF decoder, which does not validate the range of EXIF tag groups before passing them to libexif. An attacker can crash the process by supplying an image whose...

Out-of-bounds Read

Overview sharp is a High performance Node.js image processing, the fastest module to resize JPEG, PNG, WebP, GIF, AVIF and TIFF images Affected versions of this package are vulnerable to Out-of-bounds Read and null pointer dereference in the bundled libvips EXIF decoder, which does not validate t...

CVE-2026-35591

libvips is a fast image processing library with low memory needs. The tiffload operation in libvips versions before and including 8.18.1 could incorrectly determine the number of channels in a JPEG or JPEG2000-encoded tile within a TIFF image, leading to a possible buffer overflow. This has been...

CVE-2026-35590

libvips is a fast image processing library with low memory needs. The EXIF decoder within libvips versions before and including 8.18.1 was not verifying the range of EXIF tag groups before passing data to libexif, leading to a possible null pointer dereference and crash. This has been patched in...

CVE-2026-33328

libvips is a fast image processing library with low memory needs. On 32-bit systems in versions before and including 8.18.0, the gifload operation could incorrectly determine dimensions leading to an integer overflow. This has been patched in version 8.18.1...

CVE-2026-35590

libvips is a fast image processing library with low memory needs. The EXIF decoder within libvips versions before and including 8.18.1 was not verifying the range of EXIF tag groups before passing data to libexif, leading to a possible null pointer dereference and crash. This has been patched in...

UBUNTU-CVE-2026-33328

libvips is a fast image processing library with low memory needs. On 32-bit systems in versions before and including 8.18.0, the gifload operation could incorrectly determine dimensions leading to an integer overflow. This has been patched in version 8.18.1...

CVE-2026-35591

libvips is a fast image processing library with low memory needs. The tiffload operation in libvips versions before and including 8.18.1 could incorrectly determine the number of channels in a JPEG or JPEG2000-encoded tile within a TIFF image, leading to a possible buffer overflow. This has been...

CVE-2026-33328

libvips is a fast image processing library with low memory needs. On 32-bit systems in versions before and including 8.18.0, the gifload operation could incorrectly determine dimensions leading to an integer overflow. This has been patched in version 8.18.1...