CVE-2026-50734
highpriority · track · 0EPSS 0.007 · 54 %ileDEEUNLUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (25)
Products and version ranges known to be affected.
- Oracle Communications Cloud Native Core Security Edge Protection Proxy 25.2.201all versionscert_bundDEcpe:/a:oracle:communications:cloud_native_core_security_edge_protection_proxy_25.2.201
- Oracle Communications Cloud Native Core Security Edge Protection Proxy 26.1.200all versionscert_bundDEcpe:/a:oracle:communications:cloud_native_core_security_edge_protection_proxy_26.1.200
- Oracle Communications MetaSolv Solution Module 70.0.0all versionscert_bundDEcpe:/a:oracle:communications:metasolv_solution_module_70.0.0
- Oracle Communications Operations Monitor 6.1all versionscert_bundDEcpe:/a:oracle:communications:operations_monitor_6.1
- Oracle Communications Service Catalog and Design 8.0-8.3all versionscert_bundDEcpe:/a:oracle:communications:service_catalog_and_design_8.0_-_8.3
- Oracle Communications Unified Assurance 6.1.1-7.0.0all versionscert_bundDEcpe:/a:oracle:communications:unified_assurance_6.1.1_-_7.0.0
- Oracle Communications Unified Assurance 7.0.0all versionscert_bundDEcpe:/a:oracle:communications:unified_assurance_7.0.0
advisories (5)
Vendor and ecosystem advisories describing this.
- NCSC-2026-0375Kwetsbaarheden verholpen in Oracle CommunicationsNL2026-09-16csaf · ncsc_nlNL
Oracle heeft 31 kwetsbaarheden verholpen in diverse Oracle Communications-producten, waaronder Oracle Communications Unified Assurance, Oracle Communications Cloud Native Core Security Edge Protection Proxy, Oracle Communications MetaSolv Solution Module - ASR, Oracle Communications Service Catalog and Design en Oracle Communications Operations Monitor.
- WID-SEC-W-2026-2124Apache ActiveMQ: Mehrere SchwachstellenDeutsch2026-06-29csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Apache ActiveMQ ausnutzen, um Sicherheitsmaßnahmen zu umgehen, Cross-Site-Scripting-Angriffe durchzuführen oder einen Denial-of-Service-Zustand zu verursachen.
- WID-SEC-W-2026-3043IBM QRadar SIEM: Mehrere SchwachstellenDeutsch2026-08-26csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in IBM QRadar SIEM ausnutzen, um Sicherheitsvorkehrungen zu umgehen, um seine Privilegien zu erhöhen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um Dateien zu manipulieren, um einen Cross-Site Scripting Angriff durchzuführen und um beliebigen Programmcode auszuführen.
- WID-SEC-W-2026-3403Oracle Communications: Mehrere SchwachstellenDeutsch2026-09-15csaf · cert_bundDE
Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle Communications ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.
- BIT-activemq-2026-50734Apache ActiveMQ Client, Apache ActiveMQ, Apache ActiveMQ All: Pre-authentication OpenWire memory-allocation DoS during wire format negotiation2026-07-06vendor · osvUS
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.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (5)
External citations — patches, advisories, analysis.
- http://www.openwall.com/lists/oss-security/2026/06/29/10cnnvd
- https://lists.apache.org/thread/nxso951fnvf72qf9m475mpz4yf931xk0cnnvd
- https://lists.apache.org/thread/nxso951fnvf72qf9m475mpz4yf931xk0enisa_euvd
- http://www.openwall.com/lists/oss-security/2026/06/29/10Third Party Advisorynvd
- https://lists.apache.org/thread/nxso951fnvf72qf9m475mpz4yf931xk0Vendor AdvisoryMailing Listnvd
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