CVE-2021-20220

2021-02-2317:21:44

CWE-444

redhat

www.cve.org

6 Medium

AI Score

Confidence

High

0.006 Low

EPSS

Percentile

78.4%

JSON

A flaw was found in Undertow. A regression in the fix for CVE-2020-10687 was found. HTTP request smuggling related to CVE-2017-2666 is possible against HTTP/1.x and HTTP/2 due to permitting invalid characters in an HTTP request. This flaw allows an attacker to poison a web-cache, perform an XSS attack, or obtain sensitive information from request other than their own. The highest threat from this vulnerability is to data confidentiality and integrity.

CNA Affected

[
  {
    "product": "undertow",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "Undertow 2.2.0.Final, Undertow 2.1.6.Final, Undertow 2.0.34.Final"
      }
    ]
  }
]