7.5

CVE-2026-49363: apache software foundation apache activemq artemis

CVSS: 7.5v3.1HighAnalyzed
Published 10-09-2026Last modified 10-09-2026
Open JSON

Vulnerability summary

CVE-2026-49363 is a high (CVSS 7.5) vulnerability in apache software foundation apache activemq artemis. EPSS estimates a 0.80% chance of exploitation in the next 30 days, higher than 55.9% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.80%
0%100%
Low · +0.31 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 3
RHSA-2026:70228RHSA-2026:70229RHSA-2026:70230

Timeline

  1. 10-09-2026
    PublishedVulnerability first disclosed.
  2. 10-09-2026
    Last modifiedVulnerability information updated.

Description

An unauthenticated remote attacker connecting with the CORE protocol can discover cluster node details by sending a SUBSCRIBE_TOPOLOGY request prior to authentication. This issue affects Apache Artemis: from 2.50.0 through 2.56.0; Apache ActiveMQ Artemis: from 1.0.0 through 2.44.0. Users are recommended to upgrade to version 2.57.0, which fixes the issue.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.80%

Chance of exploitation in the next 30 days

Percentile

56%

Versus all other CVEs

30-day change

+0.31 pp

From 0.49% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.80%

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

Apache software foundation2 products
Apache1 product
  • artemis≥ 1.0.0, < 2.44.0 | ≥ 2.50.0, < 2.57.0

2 vendors · 3 products

References

2 links