Memory Allocation with Excessive Size Value Affecting rust-zserio package, versions <0.5.4
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Test your applications- Snyk IDSNYK-RUST-RUSTZSERIO-16624663
- published10 May 2026
- disclosed7 May 2026
- creditUnknown
Introduced: 7 May 2026
New CVE NOT AVAILABLE CWE-789 (opens in a new tab)Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade rust-zserio to version 0.5.4 or higher.
Overview
Affected versions of this package are vulnerable to Memory Allocation with Excessive Size Value via the deserialization process. An attacker can cause excessive memory consumption by providing crafted data with large size values, leading to resource exhaustion and potential denial of service.
Workaround
This vulnerability can be mitigated by only accepting encoded messages from trusted sources or by allocating a maximum heap amount to limit memory usage.