CVE-2023-30589

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 3.9%, top 11% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 4%CVSS: 7.5Exploit: NoneExposed: 0

A fix is available — apply it.

The llhttp parser in the http module in Node v20.2.0 does not strictly use the CRLF sequence to delimit HTTP requests. This can lead to HTTP Request Smuggling (HRS). The CR character (without LF) is sufficient to delimit HTTP header fields in the llhttp parser. According to RFC7230 section 3, only the CRLF sequence should delimit each header-field. This impacts all Node.js active versions: v16, v18, and, v20

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
—
EPSS
89.2%
KEV
Not listed

Published

July 1, 2023

Last Modified

November 4, 2025

References (19)

Vendor Advisories for CVE-2023-30589(2)

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

Patch Availability(7)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntunodejs-doc (10.19.0~dfsg-3ubuntu1.6) @ focal2026-05-23ubuntu
redhatnodejs-1:16.20.2-1.el9_02023-10-09redhat
redhatnodejs:16-8060020230906023909.ad008a3a2023-09-26redhat
redhatnodejs:18-8080020230718130356.63b345852023-08-08redhat
redhatnodejs:16-8080020230718141521.63b345852023-08-08redhat
redhatnodejs:18-9020020230717125503.rhel92023-07-31redhat
redhatnodejs-1:16.20.1-1.el9_22023-07-31redhat

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.

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
llhttp—8.1.1—

Additional Vendor Advisories

(6)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 13× in last 7d / 47× 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 102 total refreshes for this CVE.

  1. 2026-07-22 23:09 UTCEG score recompute
  2. 2026-07-22 14:06 UTCEPSS rescore
  3. 2026-07-22 14:06 UTCEPSS rescore
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  20. 2026-07-13 06:07 UTCOSV refresh
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  18. 2026-06-24 18:31 UTCOSV refresh
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  46. 2026-06-08 14:15 UTCEPSS rescore
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  48. 2026-06-07 19:46 UTCOSV refresh
  49. 2026-06-07 15:23 UTCEPSS rescore
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  75. 2026-05-26 07:17 UTCEPSS rescore

Related CVEs(same vendor)

Frequently asked(5)

What is CVE-2023-30589?
CVE-2023-30589 is a high vulnerability published on July 1, 2023. The llhttp parser in the http module in Node v20.2.0 does not strictly use the CRLF sequence to delimit HTTP requests. This can lead to HTTP Request Smuggling (HRS). The CR character (without LF) is sufficient to delimit HTTP header fields in the llhttp parser. According to RFC7230 section 3, only…
When was CVE-2023-30589 disclosed?
CVE-2023-30589 was first published in the National Vulnerability Database on July 1, 2023, with the most recent update on November 4, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-30589 actively exploited?
CVE-2023-30589 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 89.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-30589?
CVE-2023-30589 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2023-30589?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-30589, 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.

Dependency Blast Radius

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