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Vulnerability details

7.4/10
CVSS 3.1
CVE-2026-73086
not_affected Published 2026-08-11 Updated 2026-10-24
NVD MITRE OpenCVE
Vulnerability Data from Dependency-Track
Affected versions
Score
7.4 CVSS 3.1 NVD CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Description
nanoid is a secure, URL-friendly, unique string ID generator for JavaScript. Prior to versions 3.3.12 and 5.1.11, the nanoid(size) function in index.js and index.cjs coerces the user-influenced size parameter to a signed 32-bit integer, allowing a value of 2147483648 to become -2147483648 and corrupt the process-wide CSPRNG poolOffset in fillPool(), which causes subsequent session tokens, CSRF tokens, API keys, and unique identifiers to become the deterministic string "uuuuuuuuuuuuuuuuuuuuu" until the process restarts. This issue is fixed in versions 3.3.12 and 5.1.11.
Same vulnerability as
GHSA-xwg4-73v4-xw9w not_affected according to EUVD-2026-56554
Analysis Read only
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