CVE-2021-23566

unknown

Published 2022-01-21 · Modified 2025-11-04

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CVSS v3

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

CVSS v4 NEW

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not yet in upstream

VIR risk

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Description

The package nanoid from 3.0.0 and before 3.1.31 are vulnerable to Information Exposure via the valueOf() function which allows to reproduce the last id generated.

Predictions

Exploit likelihood

20%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`9.1.4+ds1+~cs28.2.8-1`
sid	Fixed	`9.1.4+ds1+~cs28.2.8-1`
forky	Fixed	`9.1.4+ds1+~cs28.2.8-1`
bullseye	Fixed	`8.2.1+ds1+~cs29.4.27-3+deb11u1`
bookworm	Fixed	`9.1.4+ds1+~cs28.2.8-1`

Package impact

Ecosystem	Package	Vulnerable	Fixed
npm	nanoid	`>=3.0.0,<3.1.31`	`3.1.31`

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.