CVE-2020-7746

unknown

Published 2021-05-10 · Modified 2025-01-14

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CVSS v3

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

CVSS v4 NEW

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not yet in upstream

VIR risk

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Description

This affects the package chart.js before 2.9.4. The options parameter is not properly sanitized when it is processed. When the options are processed, the existing options (or the defaults options) are deeply merged with provided options. However, during this operation, the keys of the object being set are not checked, leading to a prototype pollution.

Predictions

Exploit likelihood

30%

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	`2.9.4+dfsg+~cs2.10.1-1`
sid	Fixed	`2.9.4+dfsg+~cs2.10.1-1`
forky	Fixed	`2.9.4+dfsg+~cs2.10.1-1`
bullseye	Fixed	`2.9.4+dfsg+~cs2.10.1-1`
bookworm	Fixed	`2.9.4+dfsg+~cs2.10.1-1`

Package impact

Ecosystem	Package	Vulnerable	Fixed
npm	chart.js	`<2.9.4`	`2.9.4`

References

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

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