CVE-2021-26117

mediumpriority · track · 34EPSS 0.113 · 96 %ileDEEUUS

grimoire priorityP1 · Urgent

Exploitable?

—

no known exploitation

Likely / severe?

11.3% (96th) EPSS

CVSS 5 · medium

Is it mine?

20 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · osv · cert_bund

EPSS · scored 2026-10-27

The optional ActiveMQ LDAP login module can be configured to use anonymous access to the LDAP server. In this case, for Apache ActiveMQ Artemis prior to version 2.16.0 and Apache ActiveMQ prior to versions 5.16.1 and 5.15.14, the anonymous context is used to verify a valid users password in error, resulting in no check on the password.

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-287USprimaryCWE-287US

affected products (20)

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 ActiveMQApache ActiveMQ → 5.16.1enisa_euvdEU
Apache Software Foundation Apache ActiveMQApache ActiveMQ Artemis → 2.16.0enisa_euvdEU
apache activemq5.15.0 → 5.15.14nvdUScpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*
apache activemq5.16.0 → 5.16.1nvdUScpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*
apache artemis< 2.16.0nvdUScpe:2.3:a:apache:artemis:*:*:*:*:*:*:*:*
debian debian linux= 9.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
netapp oncommand workflow automationall versionsnvdUScpe:2.3:a:netapp:oncommand_workflow_automation:*:*:*:*:*:*:*:*
oracle communications element manager8.2.0 → 8.2.4.0nvdUScpe:2.3:a:oracle:communications_element_manager:*:*:*:*:*:*:*:*
oracle communications session report manager8.2.0 → 8.2.2nvdUScpe:2.3:a:oracle:communications_session_report_manager:*:*:*:*:*:*:*:*
oracle communications session route manager8.0.0 → 8.2.2nvdUScpe:2.3:a:oracle:communications_session_route_manager:*:*:*:*:*:*:*:*
oracle flexcube private banking= 12.0.0nvdUScpe:2.3:a:oracle:flexcube_private_banking:*:*:*:*:*:*:*:*
oracle flexcube private banking= 12.1.0nvdUScpe:2.3:a:oracle:flexcube_private_banking:*:*:*:*:*:*:*:*
Bitnami activemq5.15.0 → 5.15.14osvUSpkg:bitnami/activemq
Bitnami activemq5.16.0 → 5.16.1osvUSpkg:bitnami/activemq
Maven org.apache.activemq:activemq-parent< 5.15.14osvUSpkg:maven/org.apache.activemq/activemq-parent
Maven org.apache.activemq:activemq-parent5.16.0 → 5.16.1osvUSpkg:maven/org.apache.activemq/activemq-parent
Maven org.apache.activemq:apache-artemis< 2.16.0osvUSpkg:maven/org.apache.activemq/apache-artemis

advisories (4)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-1807Oracle Fusion Middleware: Mehrere SchwachstellenDeutsch2023-07-18csaf · cert_bundDE
Ein Angreifer aus dem angrenzenden Netzwerk oder ein entfernter anonymer, authentisierter oder lokaler Angreifer kann mehrere Schwachstellen in Oracle Fusion Middleware ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.
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-9mgm-gcq8-86wqImproper Authentication in Apache ActiveMQ and Apache Artemis2021-06-16ghsa · osvUS
The optional ActiveMQ LDAP login module can be configured to use anonymous access to the LDAP server. In this case, for Apache ActiveMQ Artemis prior to version 2.16.0 and Apache ActiveMQ prior to versions 5.16.1 and 5.15.14, the anonymous context is used to verify a valid users password in error, resulting in no check on the password.
BIT-activemq-2021-26117ActiveMQ: LDAP-Authentication does not verify passwords on servers with anonymous bind2025-12-03vendor · osvUS
The optional ActiveMQ LDAP login module can be configured to use anonymous access to the LDAP server. In this case, for Apache ActiveMQ Artemis prior to version 2.16.0 and Apache ActiveMQ prior to versions 5.16.1 and 5.15.14, the anonymous context is used to verify a valid users password in error, resulting in no check on the password.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd osv cert_bund nvd NVD CVE.org MITRE

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

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Related entries.

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+7705 more

references (71)

External citations — patches, advisories, analysis.

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