TI-2021-10524 Aliases CVE-2021-29872 GHSA-4556-grwq-3p9h

Improper output encoding in IBM Cloud Pak for Automation

LOW 26CWE-116Published 2022-01-18 · Updated 2024-09-16

Key facts

Attack vector: Network
Privileges required: Low
User interaction: Required
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: Low · Low · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

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.

Why it matters now

EPSS 0.00771 55th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
IBM	Cloud Pak for Automation	21.0.1; 21.0.2	—	No fix listed	CNA

Cloud Pak for Automation VendorIBM Affected 21.0.1; 21.0.2 Fixed in — No fix listed CNA

CPE configurations NVD · 16

CPE	Versions	Role	Vendor
cpe:2.3:a:ibm:cloud_pak_for_automation::::::::	before 21.0.2	Vulnerable	IBM
cpe:2.3:a:ibm:cloud_pak_for_automation:21.0.2:::::::*	21.0.2	Vulnerable	IBM
cpe:2.3:a:ibm:cloud_pak_for_automation:21.0.2:interim_fix001::::::	21.0.2 interim_fix001	Vulnerable	IBM
cpe:2.3:a:ibm:cloud_pak_for_automation:21.0.2:interim_fix002::::::	21.0.2 interim_fix002	Vulnerable	IBM
cpe:2.3:a:ibm:cloud_pak_for_automation:21.0.2:interim_fix003::::::	21.0.2 interim_fix003	Vulnerable	IBM
cpe:2.3:a:ibm:cloud_pak_for_automation:21.0.2:interim_fix004::::::	21.0.2 interim_fix004	Vulnerable	IBM
cpe:2.3:a:ibm:cloud_pak_for_automation:21.0.2:interim_fix005::::::	21.0.2 interim_fix005	Vulnerable	IBM
cpe:2.3:a:ibm:cloud_pak_for_automation:21.0.2:interim_fix006::::::	21.0.2 interim_fix006	Vulnerable	IBM
cpe:2.3:a:ibm:cloud_pak_for_automation::::::::	before 21.0.1	Vulnerable	IBM
cpe:2.3:a:ibm:cloud_pak_for_automation:21.0.1:::::::*	21.0.1	Vulnerable	IBM

cpe:2.3:a:ibm:cloud_pak_for_automation:*:*:*:*:*:*:*:* Versions before 21.0.2 Vulnerable ·IBM
cpe:2.3:a:ibm:cloud_pak_for_automation:21.0.2:*:*:*:*:*:*:* Versions 21.0.2 Vulnerable ·IBM
cpe:2.3:a:ibm:cloud_pak_for_automation:21.0.2:interim_fix001:*:*:*:*:*:* Versions 21.0.2 interim_fix001 Vulnerable ·IBM
cpe:2.3:a:ibm:cloud_pak_for_automation:21.0.2:interim_fix002:*:*:*:*:*:* Versions 21.0.2 interim_fix002 Vulnerable ·IBM
cpe:2.3:a:ibm:cloud_pak_for_automation:21.0.2:interim_fix003:*:*:*:*:*:* Versions 21.0.2 interim_fix003 Vulnerable ·IBM
cpe:2.3:a:ibm:cloud_pak_for_automation:21.0.2:interim_fix004:*:*:*:*:*:* Versions 21.0.2 interim_fix004 Vulnerable ·IBM
cpe:2.3:a:ibm:cloud_pak_for_automation:21.0.2:interim_fix005:*:*:*:*:*:* Versions 21.0.2 interim_fix005 Vulnerable ·IBM
cpe:2.3:a:ibm:cloud_pak_for_automation:21.0.2:interim_fix006:*:*:*:*:*:* Versions 21.0.2 interim_fix006 Vulnerable ·IBM
cpe:2.3:a:ibm:cloud_pak_for_automation:*:*:*:*:*:*:*:* Versions before 21.0.1 Vulnerable ·IBM
cpe:2.3:a:ibm:cloud_pak_for_automation:21.0.1:*:*:*:*:*:*:* Versions 21.0.1 Vulnerable ·IBM

Show 6 more CPE

CPE	Versions	Role	Vendor
cpe:2.3:a:ibm:cloud_pak_for_automation:21.0.1:interim_fix001::::::	21.0.1 interim_fix001	Vulnerable	IBM
cpe:2.3:a:ibm:cloud_pak_for_automation:21.0.1:interim_fix002::::::	21.0.1 interim_fix002	Vulnerable	IBM
cpe:2.3:a:ibm:cloud_pak_for_automation:21.0.1:interim_fix003::::::	21.0.1 interim_fix003	Vulnerable	IBM
cpe:2.3:a:ibm:cloud_pak_for_automation:21.0.1:interim_fix004::::::	21.0.1 interim_fix004	Vulnerable	IBM
cpe:2.3:a:ibm:cloud_pak_for_automation:21.0.1:interim_fix005::::::	21.0.1 interim_fix005	Vulnerable	IBM
cpe:2.3:a:ibm:cloud_pak_for_automation:21.0.1:interim_fix006::::::	21.0.1 interim_fix006	Vulnerable	IBM

cpe:2.3:a:ibm:cloud_pak_for_automation:21.0.1:interim_fix001:*:*:*:*:*:* Versions 21.0.1 interim_fix001 Vulnerable ·IBM
cpe:2.3:a:ibm:cloud_pak_for_automation:21.0.1:interim_fix002:*:*:*:*:*:* Versions 21.0.1 interim_fix002 Vulnerable ·IBM
cpe:2.3:a:ibm:cloud_pak_for_automation:21.0.1:interim_fix003:*:*:*:*:*:* Versions 21.0.1 interim_fix003 Vulnerable ·IBM
cpe:2.3:a:ibm:cloud_pak_for_automation:21.0.1:interim_fix004:*:*:*:*:*:* Versions 21.0.1 interim_fix004 Vulnerable ·IBM
cpe:2.3:a:ibm:cloud_pak_for_automation:21.0.1:interim_fix005:*:*:*:*:*:* Versions 21.0.1 interim_fix005 Vulnerable ·IBM
cpe:2.3:a:ibm:cloud_pak_for_automation:21.0.1:interim_fix006:*:*:*:*:*:* Versions 21.0.1 interim_fix006 Vulnerable ·IBM

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2021-29872
2026-10-03 Alias added: GHSA-4556-grwq-3p9h

References

Patch 1

https://www.ibm.com/support/pages/node/6541294

TI-2021-03733 XML external entity injection in IBM Cloud Pak for Automation CVSS 3.1HIGH 7.1
TI-2020-03726 The IBM Process Federation Server 18.0.0.1, 18.0.0.2, 19.0.0.1, 19.0.0.2, and 19.0.0.3… CVSS 3.1MEDIUM 6.5
TI-2021-03643 Sensitive information in log files in IBM Cloud Pak for Automation CVSS 3.1MEDIUM 6.5
TI-2021-03642 Cleartext storage of sensitive information in IBM Cloud Pak for Automation CVSS 3.1MEDIUM 6.5
TI-2021-10450 Cross-site scripting in IBM Business Automation Workflow CVSS 3.1MEDIUM 5.4
TI-2021-16402 Cross-site scripting in IBM Cloud Pak for Automation CVSS 3.1MEDIUM 5.4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences