7.5

CVE-2021-26118: apache software foundation apache activemq artemis Improper Access Control

CVSS: 7.5v3.1HighModified
AliasesUBUNTU-CVE-2021-26118GHSA-q7fr-vqhq-v5xr
Published 27-01-2021Last modified 13-02-2025
Open JSON

Vulnerability summary

CVE-2021-26118 is a high (CVSS 7.5) Improper Access Control vulnerability in apache software foundation apache activemq artemis. EPSS estimates a 3.81% chance of exploitation in the next 30 days, higher than 89.9% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
3.81%
0%100%
Low · -0.11 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 27-01-2021
    PublishedVulnerability first disclosed.
  2. 13-02-2025
    Last modifiedVulnerability information updated.

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.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

3.81%

Chance of exploitation in the next 30 days

Percentile

90%

Versus all other CVEs

30-day change

-0.11 pp

From 3.92% on 18-09-2026

18-09-202618-10-2026
EPSS score
3.81%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Apache1 product
Apache software foundation1 product
Netapp1 product
Org.apache.activemq1 product
  • artemis-openwire-protocol< 2.16.0
Ubuntu1 product
  • activemqAll versions (No fix recorded)

5 vendors · 5 products

References

10 links