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CVE-2025-23167 (GCVE-0-2025-23167)

Vulnerability from cvelistv5 – Published: 2025-05-19 01:25 – Updated: 2025-05-27 18:31
VLAI
Summary
A flaw in Node.js 20's HTTP parser allows improper termination of HTTP/1 headers using `\r\n\rX` instead of the required `\r\n\r\n`. This inconsistency enables request smuggling, allowing attackers to bypass proxy-based access controls and submit unauthorized requests. The issue was resolved by upgrading `llhttp` to version 9, which enforces correct header termination. Impact: * This vulnerability affects only Node.js 20.x users prior to the `llhttp` v9 upgrade.
Severity
6.5 (Medium)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-05-19 15:09 UTC
CWE
  • CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')
Assigner
References
Impacted products
Vendor Product Version CPE status
nodejs node Affected: 4.0 , < 4.* (semver)
Affected: 5.0 , < 5.* (semver)
Affected: 6.0 , < 6.* (semver)
Affected: 7.0 , < 7.* (semver)
Affected: 8.0 , < 8.* (semver)
Affected: 9.0 , < 9.* (semver)
Affected: 10.0 , < 10.* (semver)
Affected: 11.0 , < 11.* (semver)
Affected: 12.0 , < 12.* (semver)
Affected: 13.0 , < 13.* (semver)
Affected: 14.0 , < 14.* (semver)
Affected: 15.0 , < 15.* (semver)
Affected: 16.0 , < 16.* (semver)
Affected: 17.0 , < 17.* (semver)
Affected: 18.0 , < 18.* (semver)
Affected: 19.0 , < 19.* (semver)
Affected: 20.0 , ≤ 20.19.1 (semver)
guessed Create a notification for this product.
Show details on NVD website
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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