CVE-2021-29872: ibm cloud_pak_for_automation Improper Encoding or Escaping of Output
Vulnerability summary
CVE-2021-29872 is a medium (CVSS 5.4) Improper Encoding or Escaping of Output vulnerability in ibm cloud_pak_for_automation. EPSS estimates a 0.77% chance of exploitation in the next 30 days, higher than 55.1% of scored vulnerabilities.
Timeline
- 18-01-2022PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
IBM Cloud Pak for Automation 21.0.1 and 21.0.2 - Business Automation Studio Component is vulnerable to HTTP header injection, caused by improper validation of input by the HOST headers. By sending a specially crafted HTTP request, a remote attacker could exploit this vulnerability to inject HTTP HOST header, which will allow the attacker to conduct various attacks against the vulnerable system, including cross-site scripting, cache poisoning or session hijacking. IBM X-Force ID: 206228.
CVSS metrics
4 scores · 2 sources · 3 versions- NVDNIST5.4MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
EPSS trend
Probability
0.77%
Chance of exploitation in the next 30 days
Percentile
55%
Versus all other CVEs
30-day change
0.00 pp
From 0.77% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ibm1 product
- cloud_pak_for_automation< 21.0.2 | 21.0.2 | 21.0.2:interim_fix001 | 21.0.2:interim_fix002 | 21.0.2:interim_fix003 | 21.0.2:interim_fix004 | 21.0.2:interim_fix005 | 21.0.2:interim_fix006 | < 21.0.1 | 21.0.1 | 21.0.1:interim_fix001 | 21.0.1:interim_fix002 | 21.0.1:interim_fix003 | 21.0.1:interim_fix004 | 21.0.1:interim_fix005 | 21.0.1:interim_fix006
1 vendor · 1 product