Skip to content
Sprockets Vulnerability Allows Unauthorized File Access in Ubuntu

Sprockets Vulnerability Allows Unauthorized File Access in Ubuntu

First seen 3 Nov 2026, 22:45 UTC • •
API

Article Content

Browse articles
ThreatCluster AI
ThreatCluster •November 3, 2026 at 22:46 UTC
  • •Sprockets vulnerability allows unauthorized remote file access.
  • •Affected systems include Ubuntu 16.04 LTS with specific PHP versions.
  • •Users must update to ruby-sprockets version 3.3.0-1ubuntu0.1~esm1 to mitigate risks.

A vulnerability in the Sprockets asset packaging system has been discovered, allowing remote attackers to access files outside of an application's root directory. This issue affects specific setups and PHP versions when Sprockets is used in production. The vulnerability arises from improper handling of specially crafted requests. Users are advised to update their systems to the patched version of ruby-sprockets (3.3.0-1ubuntu0.1~esm1) to mitigate the risk. After applying the update, it is essential to restart any applications using Sprockets. The vulnerability is documented in Ubuntu Security Notice USN-8990-1, published on November 3, 2026. No has been reported at this time.

Start a free Starter trial for enhanced analysis

Ask AI about this cluster

Updated 6h ago How this analysis works

Timeline

2026-11-03
Sprockets vulnerability disclosed
Ubuntu Security Notice USN-8990-1 details a vulnerability allowing unauthorized file access via specially crafted requests.
Ubuntu
2026-11-03
Patch released
Users are advised to update to ruby-sprockets version 3.3.0-1ubuntu0.1~esm1 to fix the vulnerability.
Linuxsecurity

More articles in this cluster (3)

Following this threat?

Track Ubuntu in your own feed — you're alerted when they show up in new reporting, leak sites or exploitation.

Free account · no card needed

Extracted Entities (4)

1 / 3

Common questions

What versions of Sprockets are affected?
The vulnerability affects ruby-sprockets in Ubuntu 16.04 LTS.
What should I do to protect my systems?
Update to ruby-sprockets version 3.3.0-1ubuntu0.1~esm1 and restart any applications using Sprockets.
Is there any evidence of active exploitation?
No active exploitation has been reported at this time.