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CVE-2021-26117

ActiveMQ: LDAP-Authentication does not verify passwords on servers with anonymous bind

HIGH
7.5
CVSS Score
Published: January 27, 2021 at 12:00 AM UTC
Updated: June 17, 2026 at 03:42 AM UTC
8 products affected across 4 vendorsDebian LinuxOnCommand Workflow AutomationActiveMQ

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Severity
HIGH7.5
Exploit prediction
EPSS 11%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

ActiveMQ· Apachemaven
95%
5.15.0 ≤ v < 5.15.145.16.0 ≤ v < 5.16.1Apache ActiveMQ ≤ v < 5.16.1Apache ActiveMQ Artemis ≤ v < 2.16.0Apache ActiveMQ Artemis
Affected range stops below 2.16.0, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.15.14, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.16.1, so it looks safe — our inference, not a vendor statement
Artemis· Apachemaven
95%
v < 2.16.0
Affected range stops below 2.16.0, so it looks safe — our inference, not a vendor statement
Debian Linux· Debiandrupal
95%
9.0
OnCommand Workflow Automation· NetApp
95%
All versions
Communications Element Manager· Oracledrupal
95%
8.2.0 ≤ v ≤ 8.2.4.0
Communications Session Report Manager· Oracledrupal
95%
8.2.0 ≤ v ≤ 8.2.2
Communications Session Route Manager· Oracledrupal
95%
8.0.0 ≤ v ≤ 8.2.2
Flexcube Private Banking· Oracle
95%
12.0.012.1.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (21)

Mailing List
Source: [email protected]
https://lists.apache.org/thread.html/r110cacfa754471361234965ffe851a046e302ff2693b055f49f47b02%40%3Cissues.activemq.apache.org%3E
Mailing List
Source: [email protected]
https://lists.apache.org/thread.html/r22cdc0fb45e223ac92bc2ceff7af92f1193dfc614c8b248534456229%40%3Cissues.activemq.apache.org%3E
Mailing List
Source: [email protected]
https://lists.apache.org/thread.html/r3341d96d8f956e878fb7b463b08d57ca1d58fec9c970aee929b58e0d%40%3Cissues.activemq.apache.org%3E
Mailing List
Source: [email protected]
https://lists.apache.org/thread.html/r519bfafd67091d0b91243efcb1c49b1eea27321355ba5594f679277d%40%3Cissues.activemq.apache.org%3E
Mailing List
Source: [email protected]
https://lists.apache.org/thread.html/r5899ece90bcae5805ad6142fdb05c58595cff19cb2e98cc58a91f55b%40%3Cgitbox.activemq.apache.org%3E
Mailing List
Source: [email protected]
https://lists.apache.org/thread.html/r70389648227317bdadcdecbd9f238571a6047469d156bd72bb0ca2f7%40%3Cgitbox.activemq.apache.org%3E
Mailing List
Source: [email protected]
https://lists.apache.org/thread.html/r946488fb942fd35c6a6e0359f52504a558ed438574a8f14d36d7dcd7%40%3Ccommits.activemq.apache.org%3E
Mailing List
Source: [email protected]
https://lists.apache.org/thread.html/ra255ddfc8b613b80e9fa22ff3e106168b245f38a22316bfb54d21159%40%3Cissues.activemq.apache.org%3E

CVSS

7.5HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-287

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