Threadlinqs IntelligenceStart free

VulnerabilityCVE-2026-49157Published 2026-06-01

CVE-2026-49157 — Apache ActiveMQ

high

As of 2026-06-01, CVE-2026-49157 is a HIGH-severity vulnerability in Apache ActiveMQ, CVSS v3.1 8.8, EPSS 0.6% (48.4th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-49157, most recently “Apache ActiveMQ MessageServlet HTTP Response Header Injection (CVE-2026-42253) and Jolokia Default-Permission Privilege Issue (CVE-2026-49157)”.

CVSS v3.1
8.8/10High
EPSS
0.6%Higher than 48.4% of scored CVEs
CISA KEV
NoNot in the KEV catalog
Tracked threats
1Campaigns referencing it
Priority
6.3/10Threadlinqs triage score
Published
CVSS v3.1 8.8 (HIGH) · EPSS 0.6% (higher than 48.4% of all scored CVEs) · Priority 6.3/10 · Published 2026-06-01

Last updated:

What is CVE-2026-49157?

Incorrect Default Permissions vulnerability in Apache ActiveMQ. This issue affects Apache ActiveMQ: before 5.19.7, from 6.0.0 before 6.2.6. The default Jolokia authorization settings granted non-admin (low-privilege) web-login accounts access to Jolokia operations which allowed executing broker management operations meant for admins such as addQueue and removeQueue. Users are recommended to upgrade to version 6.2.6 or 5.19.7, which fixes the issue.

The record classifies CVE-2026-49157 under weakness class CWE-276. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs low-privilege credentials, needs no user interaction, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 137 days ago.

Severity and exploitation probability

CVSS v3.1 base score
8.8 — HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS (FIRST)
0.6% probability of exploitation in the next 30 days, higher than 48.4% of all scored CVEs
CISA KEV
Not listed in the CISA Known Exploited Vulnerabilities catalog
Threadlinqs priority
6.3/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
Published
2026-06-01

Is CVE-2026-49157 being exploited?

It currently carries a trending score of 17 in the Threadlinqs vulnerability feed.

Affected products and versions

Affected software packages:

  • maven:org.apache.activemq:apache-activemq — patched in 5.19.7
  • maven:org.apache.activemq:apache-activemq — patched in 6.2.6

How to fix CVE-2026-49157

Fixed versions are recorded for 2 packages: maven:org.apache.activemq:apache-activemq 5.19.7, maven:org.apache.activemq:apache-activemq 6.2.6. No vendor patch reference has been recorded for CVE-2026-49157 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

Threat activity tracking CVE-2026-49157

1 tracked threat in the Threadlinqs corpus references CVE-2026-49157, either in the campaign’s CVE list or as an indicator on the campaign record.

Sources

Enriched from CVE.org, FIRST EPSS, GitHub Security Advisories. Last verified by Threadlinqs on .

Vendor advisory and patch