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CVE-2026-33176

HIGH

7.5

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.

Details CVE

Score CVSS v3.17.5

SeveriteHIGH

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie3/24/2026

Derniere modification3/24/2026

Sourcenvd

Observations honeypot0

Produits affectes

rubyonrails:rails

Faiblesses (CWE)

CWE-400CWE-770

References

https://github.com/rails/rails/commit/19dbab51ca086a657bb86458042bc44314916bcb(security-advisories@github.com)

https://github.com/rails/rails/commit/ebd6be18120d1136511eb516338e27af25ac0a1a(security-advisories@github.com)

https://github.com/rails/rails/commit/ee2c59e730e5b8faed502cd2c573109df093f856(security-advisories@github.com)

https://github.com/rails/rails/releases/tag/v7.2.3.1(security-advisories@github.com)

https://github.com/rails/rails/releases/tag/v8.0.4.1(security-advisories@github.com)

https://github.com/rails/rails/releases/tag/v8.1.2.1(security-advisories@github.com)

https://github.com/rails/rails/security/advisories/GHSA-2j26-frm8-cmj9(security-advisories@github.com)

Correlations IOC

Aucune correlation enregistree

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