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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-33176 Detail

Description

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

Nist CVSS score does not match with CNA score
CNA:  GitHub, Inc.
CVSS-BT 6.6 MEDIUM
Vector:  CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/rails/rails/commit/19dbab51ca086a657bb86458042bc44314916bcb GitHub, Inc.
https://github.com/rails/rails/commit/ebd6be18120d1136511eb516338e27af25ac0a1a GitHub, Inc.
https://github.com/rails/rails/commit/ee2c59e730e5b8faed502cd2c573109df093f856 GitHub, Inc.
https://github.com/rails/rails/releases/tag/v7.2.3.1 GitHub, Inc.
https://github.com/rails/rails/releases/tag/v8.0.4.1 GitHub, Inc.
https://github.com/rails/rails/releases/tag/v8.1.2.1 GitHub, Inc.
https://github.com/rails/rails/security/advisories/GHSA-2j26-frm8-cmj9 GitHub, Inc.

Weakness Enumeration

CWE-ID CWE Name Source
CWE-400 Uncontrolled Resource Consumption GitHub, Inc.  
CWE-770 Allocation of Resources Without Limits or Throttling GitHub, Inc.  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-33176
NVD Published Date:
03/23/2026
NVD Last Modified:
03/23/2026
Source:
GitHub, Inc.