CVE-2021-20220
- Source
- https://cve.org/CVERecord?id=CVE-2021-20220
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-20220.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-20220
- Aliases
- Downstream
- Published
- 2021-02-23T18:15:13.397Z
- Modified
- 2026-02-13T02:14:16.653516Z
- Severity
-
- 4.8 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
- Summary
- [none]
- Details
-
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.
- References