CVE-2025-36126: IBM Cognos Analytics 11.2.0, 12.0, and 12.1.0 and IBM Cognos Transformer 12.0, 11.2.4, and 12.1.0 is vulnerabl

Routine

MEDIUM 6.4UPGRADEDOWNGRADE

CVE-2025-36126 is a medium-severity flaw (CVSS 6.4) affecting cognos analytics, cognos transformer. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

IBM Cognos Analytics 11.2.0, 12.0, and 12.1.0 and IBM Cognos Transformer 12.0, 11.2.4, and 12.1.0 is vulnerable to stored cross-site scripting (XSS) in Cognos Adminstration. This vulnerability allows a privileged 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

A fixed release or distro patch exists.

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 92%)
CISA exploited list	No
Weakness	CWE-79
Published	2026-05-26
Last modified	2026-07-24

Publisher (CNA): IBM Corporation · Vendor: ibm

Last updated 2026-07-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-26 17:16 UTCPublished CVE record published
2026-07-24 11:10 UTCUpdated Record last modified

ibm cognos analytics UPGRADE

Affected: >= 12.1.0 and < 12.1.2 · 11.2 · 11.2.0 · 11.2.1 · 11.2.2 · 11.2.3 · 11.2.4 · 11.2.4 fixpack1

Fixed in: 12.1.2

Safe to downgrade to: a release before 11.2

1. Check installed version

apt-cache policy cognos-analytics || rpm -q cognos-analytics || cognos-analytics --version

2. UPGRADE to 12.1.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade cognos-analytics

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade cognos-analytics

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 11.2 (Debian / Ubuntu)

apt-cache madison cognos-analytics sudo apt install cognos-analytics=<VERSION_BEFORE_11.2> sudo apt-mark hold cognos-analytics

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list cognos-analytics sudo dnf downgrade cognos-analytics-<VERSION_BEFORE_11.2> sudo dnf versionlock add cognos-analytics

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.

ibm cognos transformer DOWNGRADE

Affected: 11.2.4 · 12.0 · 12.1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 11.2.4

1. Check installed version

apt-cache policy cognos-transformer || rpm -q cognos-transformer || cognos-transformer --version

2. No fixed release: DOWNGRADE to a release before 11.2.4 (Debian / Ubuntu)

apt-cache madison cognos-transformer sudo apt install cognos-transformer=<VERSION_BEFORE_11.2.4> sudo apt-mark hold cognos-transformer

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

dnf --showduplicates list cognos-transformer sudo dnf downgrade cognos-transformer-<VERSION_BEFORE_11.2.4> sudo dnf versionlock add cognos-transformer

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-2025-36126?

cognos analytics: upgrade to 12.1.2; cognos transformer: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-36126 being exploited?

CVE-2025-36126 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-2025-36126 affect?

CVE-2025-36126 affects cognos analytics, cognos transformer. Severity is medium (CVSS 6.4). IBM Cognos Analytics 11.2.0, 12.0, and 12.1.0 and IBM Cognos Transformer 12.0, 11.2.4, and 12.1.0 is vulnerable to stored cross-site scripting (XSS) in Cognos Adminstration. This vulnerability allows a privileged user to embed arbitrary Jav

How urgent is CVE-2025-36126?

Priority 24/100. No elevated risk signals yet.

Related CVEs

CVE-2026-15995 MEDIUM 5.4 DOWNGRADE IBM Cognos Analytics 12.1.3 GA Version with build number through 12.1.3-2606251736 could allow an attacker to
CVE-2025-3633 MEDIUM 5.4 UPGRADE DOWNGRADE IBM Cognos Analytics 11.2.0, 11.2.4, 12.0, and 12.1.0 and IBM Cognos Transformer 11.2.4, 12.0, and 12.1.0 are

References

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