CVE Tools
Sign in

CVE-2021-26118

Flaw in ActiveMQ Artemis OpenWire support

Published: Jan 27, 2021Updated: Jun 15, 2026 Sources: CVE List NVD GHSACWE-284
7.5HIGH
NVD MITRE
EPSS Score
3.9%
Top 10.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-284NVD-CWE-Other

Affected Products

Apache Software Foundation
oss-project·USaka apache foundation
Apache ActiveMQ ArtemisDatabase
Databases / cache-message-queue
apache
oss-project·USaka apache httpd, apache http server
artemisOn-premDatabase
Databases / cache-message-queue
netapp
commercial·US
oncommand workflow automation
Hardware Firmware
Maven
package-ecosystem
org.apache.activemq:artemis-openwire-protocol
OSS Libraries

Exploitability

Official Patch Available
Workaround Available
Is your org exposed to CVE-2021-26118?We can run the check for you — a free external exposure review, no install. Check my exposure

References

https://mail-archives.apache.org/mod_mbox/activemq-users/202101.mbox/%3CCAH%2BvQmMUNnkiXv2-d3ucdErWOsdnLi6CgnK%2BVfixyJvTgTuYig%40mail.gmail.com%3E
mail-archives.apache.org
https://lists.apache.org/thread.html/rafd5d7cf303772a0118865262946586921a65ebd98fc24f56c812574%40%3Cannounce.apache.org%3E
lists.apache.org
https://security.netapp.com/advisory/ntap-20210827-0002/
security.netapp.com
and 5 more references View all →

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2021-26118 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows