CVE-2026-44216

Published: Mag 14, 2026 Last Modified: Mag 18, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 5,9
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: low
User Interaction: passive
Confidentiality: N/A
Integrity: N/A
Availability: N/A
HIGH 7,5
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high

Description

AI Translation Available

Wasmtime is a runtime for WebAssembly. From 30.0.0 to 36.0.8, 43.0.2, and 44.0.1, Wasmtime's allocation logic for a WebAssembly table contained checked arithmetic which panicked on overflow. This overflow is possible to trigger, and thus panic, when a table with an extremely large size is allocated. This is possible with the WebAssembly memory64 proposal where tables can have sizes in the 64-bit range as opposed to the previous 32-bit range which would not overflow. The panic happens when attempting to create a very large table, such as when instantiating a WebAssembly module or component. This vulnerability is fixed in 36.0.8, 43.0.2, and 44.0.1.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0004
Percentile
0,1th
Updated

EPSS Score Trend (Last 6 Days)

770

Allocation of Resources Without Limits or Throttling

Incomplete
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Availability
Potential Impacts:
Dos: Resource Consumption (Cpu) Dos: Resource Consumption (Memory) Dos: Resource Consumption (Other)
Applicable Platforms
All platforms may be affected
Likelihood of Exploit: High
View CWE Details
Application

Wasmtime by Bytecodealliance

Product Information
Vendor Bytecodealliance
Product Wasmtime
Version Range Affected
From 37.0.0 (inclusive)
To 43.0.2 (exclusive)
cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:rust:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Wasmtime by Bytecodealliance

Product Information
Vendor Bytecodealliance
Product Wasmtime
Version 44.0.0
cpe:2.3:a:bytecodealliance:wasmtime:44.0.0:*:*:*:*:rust:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Wasmtime by Bytecodealliance

Product Information
Vendor Bytecodealliance
Product Wasmtime
Version Range Affected
From 30.0.0 (inclusive)
To 36.0.8 (exclusive)
cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:rust:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://github.com/bytecodealliance/wasmtime/security/advis…
https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-p8xm-42r7…