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

AI Predicted 7.5 Difficulty: Trivial EPSS 0.44% · P36

Possible ATT&CK Techniques 1AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2026-33241

Vulnerability Information
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Vulnerability Title
Salvo Affected by Denial of Service via Unbounded Memory Allocation in Form Data Parsing
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
Source: CVE Program / CVE List V5
Vulnerability Title
salvo 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
salvo是Salvo开源的一个web框架。 salvo 0.89.3之前版本存在安全漏洞，该漏洞源于表单数据解析实现未强制执行有效载荷大小限制，可能导致发送超大负载时引发内存耗尽和服务崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
salvo-rssalvo < 0.89.3 -

II. Public POCs for CVE-2026-33241

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III. Intelligence Information for CVE-2026-33241

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Vendor Advisories for CVE-2026-33241 (1)

Vendor Pages for CVE-2026-33241 (1)

IV. Related Vulnerabilities

Same product: salvo
Same vendor: salvo-rs
Same weakness: CWE-770

V. Comments for CVE-2026-33241

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