CVE-2026-12751: IBM Cloud Pak for Business Automation is vulnerable to HTML injection

Routine

MEDIUM 5.4DOWNGRADE

CVE-2026-12751 is a medium-severity flaw (CVSS 5.4) affecting cloud pak for business automation. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

IBM Cloud Pak for Business Automation is vulnerable to HTML injection. A remote attacker could inject malicious HTML code, which when viewed, would be executed in the victim's Web browser within the security context of the hosting site.

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.3% (top 80%)
CISA exploited list	No
Weakness	CWE-80
Published	2026-09-15
Last modified	2026-09-23

Publisher (CNA): IBM Corporation · Vendor: ibm

Last updated 2026-09-23 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-09-15 18:17 UTCPublished CVE record published
2026-09-23 20:15 UTCUpdated Record last modified

ibm cloud pak for business automation DOWNGRADE

Affected: 24.0.0 · 24.0.0 interim_fix_001 · 24.0.0 interim_fix_002 · 24.0.0 interim_fix_003 · 24.0.0 interim_fix_004 · 24.0.0 interim_fix_005 · 24.0.0 interim_fix_006 · 24.0.0 interim_fix_007

Fixed in: no fixed release known

Safe to downgrade to: a release before 24.0.0

1. Check installed version

apt-cache policy cloud-pak-for-business-automation || rpm -q cloud-pak-for-business-automation || cloud-pak-for-business-automation --version

2. No fixed release: DOWNGRADE to a release before 24.0.0 (Debian / Ubuntu)

apt-cache madison cloud-pak-for-business-automation sudo apt install cloud-pak-for-business-automation=<VERSION_BEFORE_24.0.0> sudo apt-mark hold cloud-pak-for-business-automation

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list cloud-pak-for-business-automation sudo dnf downgrade cloud-pak-for-business-automation-<VERSION_BEFORE_24.0.0> sudo dnf versionlock add cloud-pak-for-business-automation

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-12751?

cloud pak for business automation: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-12751 being exploited?

CVE-2026-12751 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-12751 affect?

CVE-2026-12751 affects cloud pak for business automation. Severity is medium (CVSS 5.4). IBM Cloud Pak for Business Automation is vulnerable to HTML injection. A remote attacker could inject malicious HTML code, which when viewed, would be executed in the victim's Web browser within the security context of the hosting site.

How urgent is CVE-2026-12751?

Priority 24/100. No elevated risk signals yet.

Related CVEs

CVE-2026-12750 MEDIUM 6.4 DOWNGRADE IBM Cloud Pak for Business Automation is vulnerable to stored cross-site scripting
CVE-2026-12749 MEDIUM 6.4 DOWNGRADE IBM Cloud Pak for Business Automation is vulnerable to stored cross-site scripting

References

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