CVE-2026-40914: A vulnerability exists in Apache Artemis whereby an application using the STOMP protocol with security credent

Routine

MEDIUM 4.3WATCHLISTUPGRADE

CVE-2026-40914 is a medium-severity flaw (CVSS 4.3) affecting artemis. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability exists in Apache Artemis whereby an application using the STOMP protocol with security credentials that grant either the consume or send permission on an address can augment the routing-type supported by that address even if said user doesn't have the createAddress permission for that particular address. A user could successfully send a message to an address or consume a message from a queue with a routing-type not supported by th

Why this priority

On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 69%)
CISA exploited list	No
Weakness	CWE-863
Published	2026-05-28
Last modified	2026-10-14

Publisher (CNA): Apache Software Foundation · Vendor: apache

Last updated 2026-10-14 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-28 13:16 UTCPublished CVE record published
2026-10-14 20:10 UTCUpdated Record last modified

apache artemis UPGRADE

Affected: >= 2.0.0 and <= 2.44.0 · >= 2.50.0 and < 2.54.0

Fixed in: 2.54.0

Safe to downgrade to: a release before 2.0.0

1. Check installed version

apt-cache policy artemis || rpm -q artemis || artemis --version

2. UPGRADE to 2.54.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade artemis

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade artemis

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 2.0.0 (Debian / Ubuntu)

apt-cache madison artemis sudo apt install artemis=<VERSION_BEFORE_2.0.0> sudo apt-mark hold artemis

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

dnf --showduplicates list artemis sudo dnf downgrade artemis-<VERSION_BEFORE_2.0.0> sudo dnf versionlock add artemis

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-2026-40914?

artemis: upgrade to 2.54.0. Exact commands for each OS are on this page.

Is CVE-2026-40914 being exploited?

CVE-2026-40914 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-2026-40914 affect?

CVE-2026-40914 affects artemis. Severity is medium (CVSS 4.3). A vulnerability exists in Apache Artemis whereby an application using the STOMP protocol with security credentials that grant either the consume or send permission on an address can augment the routing-type supported by that address even if

How urgent is CVE-2026-40914?

Priority 28/100. On your watchlist

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References

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