CWE-789Variant

Memory Allocation with Excessive Size Value

Draft in the CWE catalog · 222 CVEs mapped

222
CVEs mapped
7.2
Median CVSS
What it is

The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated.

Recent examples
8.7cvss
CVE-2026-19204

A client may send a WebSocket frame with an unknown opcode and a very large declared payload length, causing Jetty to attempt a large memory allocation and…

A client may send a WebSocket frame with an unknown opcode and a very large declared payload length, causing Jetty to attempt a large memory allocation and potentially exhaust the JVM heap. This occurs when auto-fragmentation is enabled, as unknown opcodes bypass the normal maximum frame size handling and payload allocation occurs before the opcode is validated.

HIGHno explanation yet
epss
6.8cvss
CVE-2026-85201

In Eclipse Ankaios versions 0.1.0 through 1.0.1, the agent does not limit the length declared by a workload in a length-delimited protobuf message received…

In Eclipse Ankaios versions 0.1.0 through 1.0.1, the agent does not limit the length declared by a workload in a length-delimited protobuf message received through the Control Interface FIFO. A workload granted Control Interface access can specify an excessive message length, causing an unbounded memory allocation that may abort the Ankaios agent process. This results in loss of orchestration services for workloads managed by the affected agent.

MEDIUMno explanation yet
epss
7.5cvss
CVE-2026-85445

CVE-2026-85445 - HIGH Severity Vulnerability

MOOS-IvP through 24.8.1 contains a denial of service vulnerability in the Demuxer::addMuxPacket() function that trusts the packet count declared in mux headers without validation. Attackers can declare arbitrarily large packet counts to trigger unbounded memory allocation, exhausting system resources and causing service unavailability.

HIGHno explanation yet
0%
epss
The record
Technical detail
CWE ID
CWE-789
Abstraction
Variant
Structure
Simple
Status
Draft
References (2)