Rails is a web-application framework. Starting with version 5.2.0, there is a possible sensitive session information leak in Active Storage. By default, Active Storage sends a Set-Cookie header along with the user's session cookie when serving blobs. It also sets Cache-Control to public. Certain proxies may cache the Set-Cookie, leading to an information leak. The vulnerability is fixed in 7.0.8.1 and 6.1.7.7.
Affected: RubyGems: activestorage
# Possible Sensitive Session Information Leak in Active Storage
There is a possible sensitive session information leak in Active Storage. By default, Active Storage sends a `Set-Cookie` header along with the user's session cookie when serving blobs. It also sets `Cache-Control` to public. Certain proxies may cache the Set-Cookie, leading to an information leak.
This vulnerability has been assigned the CVE identifier CVE-2024-26144.
Versions Affected: >= 5.2.0, < 7.1.0 Not affected: < 5.2.0, > 7.1.0 Fixed Versions: 7.0.8.1, 6.1.7.7
Impact ------ A proxy which chooses to caches this request can cause users to share sessions. This may include a user receiving an attacker's session or vice versa.
This was patched in 7.1.0 but not previously identified as a security vulnerability.
All users running an affected release should either upgrade or use one of the workarounds immediately.
Releases -------- The fixed releases are available at the normal locations.
Workarounds ----------- Upgrade to Rails 7.1.X, or configure caching proxies not to cache the Set-Cookie headers.
Credits -------
Thanks to [tyage](https://hackerone.com/tyage) for reporting this!
Affected: openEuler:22.03-LTS: rubygem-activestorage
Attach cloud and local files in Rails applications. Security Fix(es): Rails is a web-application framework. Starting with version 5.2.0, there is a possible sensitive session information leak in Active Storage. By default, Active Storage sends a Set-Cookie header along with the user's session cookie when serving blobs. It also sets Cache-Control to public. Certain proxies may cache the Set-Cookie, leading to an information leak. The vulnerability is fixed in 7.0.8.1 and 6.1.7.7.(CVE-2024-26144)
python-ecdsa: vulnerable to the Minerva attack rubygem-rack: Denial of Service Vulnerability in Rack Content-Type Parsing rubygem-rack: Possible DoS Vulnerability with Range Header in Rack rubygem-activestorage: Possible Sensitive Session Information Leak in Active Storage rubygem-rack: Possible Denial of Service Vulnerability in Rack Header Parsing
Affected: Ubuntu:Pro:16.04:LTS: rails, Ubuntu:Pro:18.04:LTS: rails, Ubuntu:Pro:20.04:LTS: rails, Ubuntu:Pro:22.04:LTS: rails, Ubuntu:24.04:LTS: rails, Ubuntu:25.10: rails, Ubuntu:26.04:LTS: rails
Rails is a web-application framework. Starting with version 5.2.0, there is a possible sensitive session information leak in Active Storage. By default, Active Storage sends a Set-Cookie header along with the user's session cookie when serving blobs. It also sets Cache-Control to public. Certain proxies may cache the Set-Cookie, leading to an information leak. The vulnerability is fixed in 7.0.8.1 and 6.1.7.7.
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Ruby on Rails ausnutzen, um einen Denial-of-Service-Zustand zu erzeugen, vertrauliche Informationen offenzulegen oder einen Cross-Site-Scripting-Angriff (XSS) durchzuführen.