CVE-2020-8201

HIGHNVD 7.47.4—
EchelonGraph scoreMEDIUM confidence

Score 7.4 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-24. NVD baseline CVSS 7.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.4
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 5%CVSS: 7.4Exploit: NoneExposed: 0

A fix is available — apply it.

Node.js < 12.18.4 and < 14.11 can be exploited to perform HTTP desync attacks and deliver malicious payloads to unsuspecting users. The payloads can be crafted by an attacker to hijack user sessions, poison cookies, perform clickjacking, and a multitude of other attacks depending on the architecture of the underlying system. The attack was possible due to a bug in processing of carrier-return symbols in the HTTP header names.

CVSS v3
7.4
EG Score
7.4(medium)
EPSS
91.5%
KEV
Not listed

Published

September 18, 2020

Last Modified

November 21, 2024

References (12)

Vendor Advisories for CVE-2020-8201(3)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(3)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatrh-nodejs12-nodejs-0:12.18.4-3.el72020-11-12redhat
redhatnodejs:12-8010020201006223055.c27ad7f82020-11-04redhat
redhatnodejs:12-8020020201007080935.4cda2c842020-10-19redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 12× in last 7d / 51× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 104 total refreshes for this CVE.

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Frequently asked(5)

What is CVE-2020-8201?
CVE-2020-8201 is a high vulnerability published on September 18, 2020. Node.js < 12.18.4 and < 14.11 can be exploited to perform HTTP desync attacks and deliver malicious payloads to unsuspecting users. The payloads can be crafted by an attacker to hijack user sessions, poison cookies, perform clickjacking, and a multitude of other attacks depending on the…
When was CVE-2020-8201 disclosed?
CVE-2020-8201 was first published in the National Vulnerability Database on September 18, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-8201 actively exploited?
CVE-2020-8201 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 91.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2020-8201?
CVE-2020-8201 has a CVSS v3 base score of 7.4 (NVD).
How do I remediate CVE-2020-8201?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-8201, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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