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Security Advisories

CVE-2026-33176

NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-33176

Severity

Unknown
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Summary

Rails Active Support has a possible DoS vulnerability in its number helpers

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.

References

Affected packages


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