Missing Authentication for Critical Function in Apache ActiveMQ Artemis and Apache Artemis - CVE-2026-57967
Published: September 10, 2026
Vulnerability identifier: #VU148872
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-57967
CWE-ID: CWE-306
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to hijack an existing authenticated session and assume its ongoing execution.
The vulnerability exists due to missing authentication in CORE protocol session reattachment when processing a crafted SESSION_REATTACH packet. A remote attacker can send a crafted CORE protocol SESSION_REATTACH packet to hijack an existing authenticated session and assume its ongoing execution.
Affected software
Apache ActiveMQ Artemis
Apache Artemis
Apache Artemis
How to mitigate CVE-2026-57967
Install security update from vendor's website.
Apache Artemis - update to 2.57.0