CVE-2026-50734
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Apache ActiveMQ Client, Apache ActiveMQ, Apache ActiveMQ All: Pre-authentication OpenWire memory-allocation DoS during wire format negotiation
Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ Client, Apache ActiveMQ, Apache ActiveMQ All. An unauthenticated network attacker can cause a broker DoS by sending a crafted WireFormatInfo frame with a malicious large size value. The value is not validate and causes the broker to attempt allocation during pre-auth negotiation which can trigger OOM and crash the broker. This issue affects Apache ActiveMQ Client: before 5.19.8, from 6.0.0 before 6.2.7; 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. Users are recommended to upgrade to version 6.2.7 or 5.19.8, which fixes the issue.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Apache ActiveMQ Client
- Vendor
- Apache Software Foundation
- Product
- Apache ActiveMQ Client
- Platforms
- Unknown
- Default status
unaffected- Package
- org.apache.activemq:activemq-client
- Package collection
- https://repo.maven.apache.org/maven2
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 0 | affected | semver | 5.19.8 | Unavailable | None listed |
| 6.0.0 | affected | semver | 6.2.7 | Unavailable | None listed |
Apache ActiveMQ
- Vendor
- Apache Software Foundation
- Product
- Apache ActiveMQ
- Platforms
- Unknown
- Default status
unaffected- Package
- org.apache.activemq:apache-activemq
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 0 | affected | semver | 5.19.8 | Unavailable | None listed |
| 6.0.0 | affected | semver | 6.2.7 | Unavailable | None listed |
Apache ActiveMQ All
- Vendor
- Apache Software Foundation
- Product
- Apache ActiveMQ All
- Platforms
- Unknown
- Default status
unaffected- Package
- org.apache.activemq:activemq-all
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 0 | affected | semver | 5.19.8 | Unavailable | None listed |
| 6.0.0 | affected | semver | 6.2.7 | Unavailable | None listed |