CVE-2026-12749: IBM Cloud Pak for Business Automation is vulnerable to stored cross-site scripting

Routine

MEDIUM 6.4DOWNGRADE

CVE-2026-12749 is a medium-severity flaw (CVSS 6.4) 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 stored cross-site scripting. This vulnerability allows an authenticated user to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	6.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 86%)
CISA exploited list	No
Weakness	CWE-79
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 20:12 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-2026-12749?

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

Is CVE-2026-12749 being exploited?

CVE-2026-12749 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-2026-12749 affect?

CVE-2026-12749 affects cloud pak for business automation. Severity is medium (CVSS 6.4). IBM Cloud Pak for Business Automation is vulnerable to stored cross-site scripting. This vulnerability allows an authenticated user to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leadin

How urgent is CVE-2026-12749?

Priority 26/100. No elevated risk signals yet.

Related CVEs

CVE-2026-12751 MEDIUM 5.4 DOWNGRADE IBM Cloud Pak for Business Automation is vulnerable to HTML injection
CVE-2026-12750 MEDIUM 6.4 DOWNGRADE IBM Cloud Pak for Business Automation is vulnerable to stored cross-site scripting

References

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