Back to Database
Status published
High
CVE-2021-26117
ActiveMQ: LDAP-Authentication does not verify passwords on servers with anonymous bind
Vulnerability Description
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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2021-26117
Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Apache ActiveMQ would like to thank Gregor Tudan <gregor.tudan@cofinpro.de> for reporting this issue.
References
- https://mail-archives.apache.org/mod_mbox/activemq-users/202101.mbox/%3cCAH+vQmMeUEiKN4wYX9nLBbqmFZFPXqajNvBKmzb2V8QZANcSTA%40mail.gmail.com%3e
- https://lists.apache.org/thread.html/rffa5cd05d01c4c9853b17f3004d80ea6eb8856c422a8545c5f79b1a6%40%3Ccommits.activemq.apache.org%3E
- https://lists.apache.org/thread.html/re1b98da90a5f2e1c2e2d50e31c12e2578d61fe01c0737f9d0bd8de99%40%3Cannounce.apache.org%3E
- https://lists.apache.org/thread.html/r946488fb942fd35c6a6e0359f52504a558ed438574a8f14d36d7dcd7%40%3Ccommits.activemq.apache.org%3E
- https://lists.debian.org/debian-lts-announce/2021/03/msg00005.html
- https://lists.apache.org/thread.html/r70389648227317bdadcdecbd9f238571a6047469d156bd72bb0ca2f7%40%3Cgitbox.activemq.apache.org%3E
- https://lists.apache.org/thread.html/r5899ece90bcae5805ad6142fdb05c58595cff19cb2e98cc58a91f55b%40%3Cgitbox.activemq.apache.org%3E
- https://lists.apache.org/thread.html/rec93794f8aeddf8a5f1a643d264b4e66b933f06fd72a38f31448f0ac%40%3Cgitbox.activemq.apache.org%3E
- https://lists.apache.org/thread.html/rd75600cee29cb248d548edcf6338fe296466d63a69e2ed0afc439ec7%40%3Cissues.activemq.apache.org%3E
- https://lists.apache.org/thread.html/raea451de09baed76950d6a60cc4bb1b74476c505e03205a3c68c9808%40%3Cissues.activemq.apache.org%3E
- https://lists.apache.org/thread.html/r110cacfa754471361234965ffe851a046e302ff2693b055f49f47b02%40%3Cissues.activemq.apache.org%3E
- https://lists.apache.org/thread.html/r22cdc0fb45e223ac92bc2ceff7af92f1193dfc614c8b248534456229%40%3Cissues.activemq.apache.org%3E
- https://lists.apache.org/thread.html/r3341d96d8f956e878fb7b463b08d57ca1d58fec9c970aee929b58e0d%40%3Cissues.activemq.apache.org%3E
- https://lists.apache.org/thread.html/r519bfafd67091d0b91243efcb1c49b1eea27321355ba5594f679277d%40%3Cissues.activemq.apache.org%3E
- https://lists.apache.org/thread.html/rd05b1c9d61dbd220664d559aa0e2b55e5830f006a09e82057f3f7863%40%3Cissues.activemq.apache.org%3E
- https://lists.apache.org/thread.html/ra255ddfc8b613b80e9fa22ff3e106168b245f38a22316bfb54d21159%40%3Cissues.activemq.apache.org%3E
- https://www.oracle.com/security-alerts/cpuApr2021.html
- https://security.netapp.com/advisory/ntap-20210304-0008/
- https://www.oracle.com//security-alerts/cpujul2021.html
- https://www.oracle.com/security-alerts/cpuoct2021.html
- https://lists.debian.org/debian-lts-announce/2023/11/msg00013.html
More from Apache Software Foundation
View All →CVE-2025-69233
Apache CloudStack: Domain/account resources limits not honored
Medium
6.5
CVE-2025-69219
Apache Airflow Providers Http: Unsafe Pickle Deserialization in apache-airflow-providers-http leading to RCE via HttpOperator
Unknown
0
CVE-2025-68675
Apache Airflow: proxy credentials for various providers might leak in task logs
Unknown
0
CVE-2025-68637
Apache Uniffle: Insecure SSL Configuration in Uniffle HTTP Client
Unknown
0
CVE-2025-68493
Apache Struts, Apache Struts: XXE vulnerability in outdated XWork component
Unknown
0
Affected Vendor
Apache Software Foundation
View all reports →Affected Software
Apache ActiveMQ
Vulnerable Versions:
Apache ActiveMQ Artemis, Apache ActiveMQ
Timeline
Official Publish:
January 27th, 2021
Last Modified:
August 3rd, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N