Apache ActiveMQ Web Console Authorization Bypass

Improper Authorization vulnerability in Apache ActiveMQ. An authenticated low-privilege Web Console user by default can access /admin/* paths in the Web Console. The default Jetty settings incorrectly did not limit those paths to only admins. This issue affects Apache ActiveMQ: before 5.19.8, from 6.0.0 before 6.2.7. Users are recommended to upgrade to version 6.2.7 or 5.19.8, which fixes the issue.

Casky was already ahead

This CVE exploits attack patterns that Casky's 283matched skills already investigate — long before this vulnerability was disclosed. Claude's reasoning model maps these techniques to MITRE ATT&CK, so practitioners who ran these skills have already seen the threat behaviour in their findings.

Analysis

CVE-2026-49877 is an improper authorization vulnerability affecting Apache ActiveMQ's Web Console that allows authenticated low-privilege users to access administrative paths (/admin/*) they should not have permission to reach. This occurs because default Jetty settings failed to properly restrict these paths to administrators only, creating a privilege escalation pathway. Organizations running affected versions (5.19.x before 5.19.8 and 6.0.0 through 6.2.6) face significant risk, as attackers with basic user credentials can gain unauthorized access to sensitive administrative functions and potentially manipulate broker configurations, message queues, or extract confidential data.

Casky.ai's 283 matching security skills leverage Claude's extended reasoning to detect the attack patterns behind this CVE by analyzing behavior across MITRE ATT&CK Privilege Escalation (TA0004) and Credential Access (TA0006) techniques. Practitioners using Casky would identify suspicious indicators such as low-privilege user sessions accessing /admin/* endpoints, unauthorized administrative configuration changes, or unexpected privilege elevation within ActiveMQ logs. The platform's skill mapping enables detection of lateral movement attempts following initial console access, authentication token manipulation, and configuration tampering that typically follow successful authorization bypasses—allowing security teams to recognize exploitation patterns before attackers achieve deeper system compromise.

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Casky Risk Score

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EPSS Probability

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Shodan Exposure

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GreyNoise Signal

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Composite risk scoring from EPSS, CISA KEV, Shodan, and GreyNoise — 21 security APIs correlated into a single Casky Risk Score. Coming in Casky Pro. Join early access →

283 Casky skills cover this attack pattern

These skills use Claude AI's reasoning model to surface findings in the same attack categories as CVE-2026-49877.

abusing-dpapi-for-credential-access

red teaming · high

Run

abusing-shadow-credentials-for-privesc

red teaming · high

Run

Access with Stolen Session Cookie

penetration testing · medium

Run

MITRE ATT&CK Techniques

TA0004 TA0006

Investigate the attack patterns behind CVE-2026-49877

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