THREATPORT/VULNERABILITY/CVE-2023-30589
HIGH SEVERITY

CVE-2023-30589

Node.Js vulnerability

CVSS
7.5
EPSS
3.9%
EPSS pct
89th
Exploited
No known
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
Affected vendor
Nodejs
Affected product
Node.Js
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Published
2023-07-01

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to integrity.

Its EPSS score of 3.9% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2023-30589

  • Confirm whether Nodejs Node.Js is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2023-30589.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2023-30589

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2023-30589 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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