CVE-2021-38997 MEDIUM

CVE-2021-38997: IBM API Connect HOST header injection

Vendor Ibm
Product API Connect
Weakness CWE-644
Published December 1, 2022
Last update April 23, 2025

CVSS base score

5.4/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

What the vulnerability does

01Description

IBM API Connect V10.0.0.0 through V10.0.5.0, V10.0.1.0 through V10.0.1.7, and V2018.4.1.0 through 2018.4.1.19 is vulnerable to HTTP header injection, caused by improper validation of input by the HOST headers. This could allow an attacker to conduct various attacks against the vulnerable system, including cross-site scripting, cache poisoning or session hijacking. IBM X-Force ID: 213212.

Key dates

02Disclosure timeline

December 1, 2022 CVE published
April 23, 2025 Record updated