Allocation of Resources Without Limits or Throttling The advisory has been revoked - it doesn't affect any version of package rubygem-activesupport (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL10-RUBYGEMACTIVESUPPORT-15769824
- published26 Mar 2026
- disclosed23 Mar 2026
Introduced: 23 Mar 2026
CVE-2026-33176 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream rubygem-activesupport package and not the rubygem-activesupport package as distributed by RHEL.
Active Support is a toolkit of support libraries and Ruby core extensions extracted from the Rails framework. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1, Active Support number helpers accept strings containing scientific notation (e.g. 1e10000), which BigDecimal expands into extremely large decimal representations. This can cause excessive memory allocation and CPU consumption when the expanded number is formatted, possibly resulting in a DoS vulnerability. Versions 8.1.2.1, 8.0.4.1, and 7.2.3.1 contain a patch.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2450551
- https://access.redhat.com/security/cve/CVE-2026-33176
- https://github.com/rails/rails/commit/19dbab51ca086a657bb86458042bc44314916bcb
- https://github.com/rails/rails/commit/ebd6be18120d1136511eb516338e27af25ac0a1a
- https://github.com/rails/rails/commit/ee2c59e730e5b8faed502cd2c573109df093f856
- https://github.com/rails/rails/releases/tag/v7.2.3.1
- https://github.com/rails/rails/releases/tag/v8.0.4.1
- https://github.com/rails/rails/releases/tag/v8.1.2.1
- https://github.com/rails/rails/security/advisories/GHSA-2j26-frm8-cmj9