CVE-2020-8201 (GCVE-0-2020-8201)

Vulnerability from cvelistv5 – Published: 2020-09-18 20:12 – Updated: 2025-04-30 22:24
VLAI
Summary
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.
Severity
7.4 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE
  • CWE-444 - HTTP Request Smuggling (CWE-444)
Assigner
References
Impacted products
Vendor Product Version
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: 11.0 , < 11.* (semver)
Affected: 12.0 , < 12.18.4 (semver)
Affected: 13.0 , < 13.* (semver)
Affected: 14.0 , < 14.11.0 (semver)
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      "title": "nodejs: HTTP request smuggling due to CR-to-Hyphen conversion",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-8201.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2025-12-17T02:04:17Z",
      "cve": "CVE-2020-8201",
      "id": "CVE-2020-8201",
      "initial_release_date": "2023-02-15T04:01:25Z",
      "product_status:known_affected": "40",
      "product_status:known_not_affected": "77",
      "product_status:recommended": "135",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2020-8201",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2020-8201.json",
      "version": "14"
    }
  }
}



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Tags
Taxonomy of the tags.





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

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.