CVE-2021-26118

mediumpriority · track · 31EPSS 0.039 · 90 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

3.86% (90th) EPSS

CVSS 5 · medium

Is it mine?

7 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

While investigating ARTEMIS-2964 it was found that the creation of advisory messages in the OpenWire protocol head of Apache ActiveMQ Artemis 2.15.0 bypassed policy based access control for the entire session. Production of advisory messages was not subject to access control in error.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nsecondary · OSV

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-284USCWE-284USCWE-287US

affected products (7)

Products and version ranges known to be affected.

Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
Apache Software Foundation Apache ActiveMQ Artemisunspecified → 2.16.0enisa_euvdEU
apache artemis= 2.15.0nvdUScpe:2.3:a:apache:artemis:*:*:*:*:*:*:*:*
netapp oncommand workflow automationall versionsnvdUScpe:2.3:a:netapp:oncommand_workflow_automation:*:*:*:*:*:*:*:*
Maven org.apache.activemq:artemis-openwire-protocol< 2.16.0osvUSpkg:maven/org.apache.activemq/artemis-openwire-protocol

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-2969Apache ActiveMQ: Mehrere Schwachstellen ermöglichen Umgehen von SicherheitsvorkehrungenDeutsch2021-01-27csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Apache ActiveMQ ausnutzen, um Sicherheitsvorkehrungen zu umgehen.
GHSA-q7fr-vqhq-v5xrApache ActiveMQ Artemis vulnerable to Improper Access Control2021-06-16ghsa · osvUS
While investigating ARTEMIS-2964 it was found that the creation of advisory messages in the OpenWire protocol head of Apache ActiveMQ Artemis 2.15.0 bypassed policy based access control for the entire session. Production of advisory messages was not subject to access control in error.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd osv NVD CVE.org MITRE

published 2021-01-27modified 2026-06-17

references (10)

External citations — patches, advisories, analysis.

scry

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