CVE-2026-2482: IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.8 is vulnerable to cross-site request forge

Routine

LOW 3.1UPGRADE

CVE-2026-2482 is a low-severity flaw (CVSS 3.1) affecting websphere application server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.8 is vulnerable to cross-site request forgery which could allow an attacker to execute malicious and unauthorized actions transmitted from a user that the website trusts.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	3.1 (Low)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.2% (top 96%)
CISA exploited list	No
Weakness	CWE-352
Published	2026-07-29
Last modified	2026-10-24

Publisher (CNA): IBM Corporation · Vendor: ibm

Last updated 2026-10-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-07-29 19:16 UTCPublished CVE record published
2026-10-24 13:10 UTCUpdated Record last modified

ibm websphere application server UPGRADE

Affected: >= 17.0.0.3 and < 26.0.0.9

Fixed in: 26.0.0.9

Safe to downgrade to: a release before 17.0.0.3

1. Check installed version

apt-cache policy websphere-application-server || rpm -q websphere-application-server || websphere-application-server --version

2. UPGRADE to 26.0.0.9 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade websphere-application-server

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade websphere-application-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 17.0.0.3 (Debian / Ubuntu)

apt-cache madison websphere-application-server sudo apt install websphere-application-server=<VERSION_BEFORE_17.0.0.3> sudo apt-mark hold websphere-application-server

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

dnf --showduplicates list websphere-application-server sudo dnf downgrade websphere-application-server-<VERSION_BEFORE_17.0.0.3> sudo dnf versionlock add websphere-application-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-2026-2482?

websphere application server: upgrade to 26.0.0.9. Exact commands for each OS are on this page.

Is CVE-2026-2482 being exploited?

CVE-2026-2482 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-2026-2482 affect?

CVE-2026-2482 affects websphere application server. Severity is low (CVSS 3.1). IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.8 is vulnerable to cross-site request forgery which could allow an attacker to execute malicious and unauthorized actions transmitted from a user that the website trusts.

How urgent is CVE-2026-2482?

Priority 12/100. No elevated risk signals yet.

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References

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