CVE-2026-49432
HIGHApache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp: STOMP negative content-length enables denial of service
Title source: cnaExploitation Summary
EIP tracks 1 public exploit for CVE-2026-49432. PoCs published by HermesNA-1.
AI-analyzed exploit summary This repository contains an auto-generated stub module for CVE-2026-49432, an improper input validation vulnerability in Apache ActiveMQ's STOMP connector. The code includes placeholder methods (`check()` and `run()`) but lacks actual exploit logic, referencing external advisories for details.
Description
Improper Input Validation vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp. A remote unauthenticated peer that can reach an exposed STOMP connector can trigger denial-of-service behavior by sending a negative content-length. For the NIO STOMP transport, an attacker can keep streaming body bytes and grow the per-connection command buffer beyond configured limits to cause OOM. For the blocking STOMP protocol, an error will instead force abnormal transport exception handling for the affected connection and closure. This issue affects Apache ActiveMQ: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ All: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ Stomp: 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.
Exploits (1)
This repository contains an auto-generated stub module for CVE-2026-49432, an improper input validation vulnerability in Apache ActiveMQ's STOMP connector. The code includes placeholder methods (`check()` and `run()`) but lacks actual exploit logic, referencing external advisories for details.
References (2)
Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H