GHSA-mh6f-8j2x-4483

Critical severity vulnerability that affects event-stream and flatmap-stream

Published 26 Nov 2018Modified 15 Sep 2021

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

Severity by source

GHSA9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by GHSA.

Description

The NPM package `flatmap-stream` is considered malicious. A malicious actor added this package as a dependency to the NPM `event-stream` package in version `3.3.6`. Users of `event-stream` are encouraged to downgrade to the last non-malicious version, `3.3.4`, or upgrade to the latest 4.x version. Users of `flatmap-stream` are encouraged to remove the dependency entirely.

Affected packages and fixed versions

Source	Package	Fixed in
npm::GitHub Security Advisory npm	event-stream, flatmap-stream	4.0.0

Show all 2 entries from 1 source

Source	Package	Fixed in
npm::GitHub Security Advisory npm	event-stream	4.0.0
npm::GitHub Security Advisory npm	flatmap-stream	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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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.