Answer in brief
CVE-2026-49432 records a High severity (CVSS 7.5) vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Stomp has an Improper Input Validation vulnerability. The current sources do not mark it as known exploited. The current feed maps org.apache.activemq:activemq-all (maven), org.apache.activemq:activemq-all (maven), org.apache.activemq:activemq-stomp (maven), org.apache.activemq:activemq-stomp (maven) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps org.apache.activemq:activemq-all (maven), org.apache.activemq:activemq-all (maven), org.apache.activemq:activemq-stomp (maven), org.apache.activemq:activemq-stomp (maven) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| org.apache.activemq:activemq-allmaven | <5.19.8 | 5.19.8 |
| org.apache.activemq:activemq-allmaven | >=6.0.0,<6.2.7 | 6.2.7 |
| org.apache.activemq:activemq-stompmaven | <5.19.8 | 5.19.8 |
| org.apache.activemq:activemq-stompmaven | >=6.0.0,<6.2.7 | 6.2.7 |
| org.apache.activemq:apache-activemqmaven | <5.19.8 | 5.19.8 |
| org.apache.activemq:apache-activemqmaven | >=6.0.0,<6.2.7 | 6.2.7 |
Published upstream
Jun 30, 2026
Evidence: source:ghsa:source_dates:source-dates:recordSource modified
Nov 5, 2026
Evidence: source:ghsa:source_dates:source-dates:recordFirst seen by HOL
Jun 30, 2026
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.
Quoted source text, attributed separately from HOL analysis.