CVE-2021-3757

nodejs-immer: prototype pollution may lead to DoS or remote code execution

Published 2 Sep 2021Modified 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

GHSA7.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Red Hat7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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

Description

immer is vulnerable to Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

Affected packages and fixed versions

Source	Package	Fixed in
npm::GitHub Security Advisory npm	immer	9.0.6
Red Hat	servicemesh-grafana, servicemesh-grafana-prometheus, servicemesh-prometheus	no fix listed

Show all 4 entries from 2 sources

Source	Package	Fixed in
npm::GitHub Security Advisory npm	immer	9.0.6
Red Hat	servicemesh-grafana	no fix listed
Red Hat	servicemesh-grafana-prometheus	no fix listed
Red Hat	servicemesh-prometheus	no fix listed

References

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Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.