CVE-2026-3676: IBM Cloud APM, Base Private 8.1.4 and IBM Cloud APM, Advanced Private 8.1.4 IBM Db2 for Linux, UNIX and Window

Routine

MEDIUM 6.5WATCHLISTDOWNGRADE

CVE-2026-3676 is a medium-severity flaw (CVSS 6.5) affecting cloud application performance managemen. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

IBM Cloud APM, Base Private 8.1.4 and IBM Cloud APM, Advanced Private 8.1.4 IBM Db2 for Linux, UNIX and Windows (includes DB2 Connect Server) could allow an authenticated user to cause a denial of service due to improper neutralization of special elements in the data query logic of the Fenced environment.

Why this priority

On your watchlist

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

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 66%)
CISA exploited list	No
Weakness	CWE-1284
Published	2026-05-27
Last modified	2026-10-26

Publisher (CNA): IBM Corporation · Vendor: ibm

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-27 14:16 UTCPublished CVE record published
2026-10-26 11:10 UTCUpdated Record last modified

ibm cloud application performance managemen DOWNGRADE

Affected: 8.1.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 8.1.4

1. Check installed version

apt-cache policy cloud-application-performance-managemen || rpm -q cloud-application-performance-managemen || cloud-application-performance-managemen --version

2. No fixed release: DOWNGRADE to a release before 8.1.4 (Debian / Ubuntu)

apt-cache madison cloud-application-performance-managemen sudo apt install cloud-application-performance-managemen=<VERSION_BEFORE_8.1.4> sudo apt-mark hold cloud-application-performance-managemen

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

dnf --showduplicates list cloud-application-performance-managemen sudo dnf downgrade cloud-application-performance-managemen-<VERSION_BEFORE_8.1.4> sudo dnf versionlock add cloud-application-performance-managemen

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-2026-3676?

cloud application performance managemen: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-3676 being exploited?

CVE-2026-3676 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-2026-3676 affect?

CVE-2026-3676 affects cloud application performance managemen. Severity is medium (CVSS 6.5). IBM Cloud APM, Base Private 8.1.4 and IBM Cloud APM, Advanced Private 8.1.4 IBM Db2 for Linux, UNIX and Windows (includes DB2 Connect Server) could allow an authenticated user to cause a denial of service due to improper neutralization of s

How urgent is CVE-2026-3676?

Priority 36/100. On your watchlist

Software pages

Windows vulnerabilities

References

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