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CVE-2026-1567: IBM InfoSphere Information Server 11.7.0.0 through 11.7.1.6 An XML External Entity (XXE) vulnerability in IBM

31
Routine
HIGH 7.1UPGRADE

CVE-2026-1567 is a high-severity flaw (CVSS 7.1) affecting infosphere information server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

IBM InfoSphere Information Server 11.7.0.0 through 11.7.1.6 An XML External Entity (XXE) vulnerability in IBM InfoSphere Information Server could allow attackers to retrieve sensitive information from the server.

Why this priority

  • High severity

A fixed release or distro patch exists.

Risk facts

CVSS score7.1 (High)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededLow
User interactionNone
EPSS exploit chance0.3% (top 75%)
CISA exploited listNo
WeaknessCWE-611
Published2026-03-03
Last modified2026-06-17
Publisher (CNA): IBM Corporation · Vendor: ibm

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Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

ibm infosphere information server UPGRADE
Affected: >= 11.7 and <= 11.7.1.6
Fixed in: newer than 11.7.1.6
Safe to downgrade to: a release before 11.7
1. Check installed version
apt-cache policy infosphere-information-server || rpm -q infosphere-information-server || infosphere-information-server --version
2. UPGRADE to newer than 11.7.1.6 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade infosphere-information-server
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade infosphere-information-server
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 11.7 (Debian / Ubuntu)
apt-cache madison infosphere-information-server sudo apt install infosphere-information-server=<VERSION_BEFORE_11.7> sudo apt-mark hold infosphere-information-server
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list infosphere-information-server sudo dnf downgrade infosphere-information-server-<VERSION_BEFORE_11.7> sudo dnf versionlock add infosphere-information-server
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-2026-1567?

infosphere information server: upgrade to newer than 11.7.1.6. Exact commands for each OS are on this page.

Is CVE-2026-1567 being exploited?

CVE-2026-1567 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-2026-1567 affect?

CVE-2026-1567 affects infosphere information server. Severity is high (CVSS 7.1). IBM InfoSphere Information Server 11.7.0.0 through 11.7.1.6 An XML External Entity (XXE) vulnerability in IBM InfoSphere Information Server could allow attackers to retrieve sensitive information from the server.

How urgent is CVE-2026-1567?

Priority 31/100. High severity

Related CVEs

References

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