CVE-2023-26135

flatnest Prototype Pollution vulnerability

Published 30 Jun 2023Modified 17 Jun 2026CWE 1321

In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

GHSA7.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by GHSA (high).

Description

All versions of the package flatnest are vulnerable to Prototype Pollution via the nest() function in the flatnest/nest.js file.

Affected packages and fixed versions

Source	Package	Fixed in
npm::GitHub Security Advisory npm	flatnest	no fix listed

References

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RecordsEach decision is recorded with the policy that ran and its hash, then sealed under a signed checkpoint.

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