Improper Input Validation Affecting ruby4.0-default-gems package, versions <0:4.0.0-33.3.hum1


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
4.25% (90th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-RHEL10-RUBY40DEFAULTGEMS-16114774
  • published21 Apr 2026
  • disclosed28 Dec 2011

Introduced: 28 Dec 2011

CVE-2011-4815  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade RHEL:10 ruby4.0-default-gems to version 0:4.0.0-33.3.hum1 or higher.
This issue was patched in RHSA-2026:8838.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby4.0-default-gems package and not the ruby4.0-default-gems package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

Ruby (aka CRuby) before 1.8.7-p357 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash table.

CVSS Base Scores

version 3.1