CVE-2026-33241 HIGH

CVE-2026-33241: Salvo Affected by Denial of Service via Unbounded Memory Allocation in Form Data Parsing

Vendor Salvo-Rs
Product salvo
Weakness CWE-770 · Uncontrolled resource consumption
Published March 23, 2026
Last update March 25, 2026

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

Salvo is a Rust web framework. Prior to version 0.89.3, Salvo's form data parsing implementations (`form_data()` method and `Extractible` macro) do not enforce payload size limits before reading request bodies into memory. This allows attackers to cause Out-of-Memory (OOM) conditions by sending extremely large payloads, leading to service crashes and denial of service. Version 0.89.3 contains a patch.

Key dates

02Disclosure timeline

March 23, 2026 CVE published
March 25, 2026 Record updated