Vulnerability Database

296,733

Total vulnerabilities in the database

CVE-2021-22959

The parser in accepts requests with a space (SP) right after the header name before the colon. This can lead to HTTP Request Smuggling (HRS) in llhttp < v2.1.4 and < v6.0.6.

  • Published: Nov 15, 2021
  • Updated: Apr 14, 2023
  • CVE: CVE-2021-22959
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 6.5
  • AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CVSS v2:

  • Severity: Medium
  • Score: 6.4
  • AV:N/AC:L/Au:N/C:P/I:P/A:N

CWEs:

Software From Fixed in
llhttp / llhttp - 2.1.4
llhttp / llhttp 3.0.0 6.0.6
oracle / graalvm 21.3.0 21.3.0.x
oracle / graalvm 20.3.4 20.3.4.x
debian / debian_linux 11.0 11.0.x