CVE-2026-107297

Published: Ott 08, 2026 Last Modified: Ott 08, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 5,9
Source: [email protected]
Attack Vector: network
Attack Complexity: high
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high

Description

AI Translation Available

msgpack5 is a msgpack v5 implementation for node.js and the browser. Prior to 6.1.0, the streaming decoder reparses an incomplete array or map from the beginning whenever another chunk arrives. A remote peer can split one valid MessagePack container across many small chunks, causing completed elements to be decoded repeatedly, producing quadratic CPU use and blocking the event loop. This issue is fixed in version 6.1.0.

407

Inefficient Algorithmic Complexity

Incomplete
Abstraction: Class 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: Low
View CWE Details
https://github.com/mcollina/msgpack5/commit/e4827641d3105e2…
https://github.com/mcollina/msgpack5/commit/e4827641d3105e295cbbd56e9c538997854…
https://github.com/mcollina/msgpack5/releases/tag/v6.1.0
https://github.com/mcollina/msgpack5/releases/tag/v6.1.0
https://github.com/mcollina/msgpack5/security/advisories/GH…
https://github.com/mcollina/msgpack5/security/advisories/GHSA-gcx5-hxj7-gpqq