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CVE-2025-30153— Improper Handling of Highly Compressed Data (Data Amplification) in github.com/getkin/kin-openapi/openapi3filter

Quick assessment

Affected
getkin kin-openapi
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

kin-openapi是getkin开源的一个 Go 的 OpenAPI 3.0 实现（解析、转换、验证等）。 kin-openapi 0.131.0之前版本存在安全漏洞，该漏洞源于处理multipart/form-data请求时可能导致内存耗尽。

CVSS 7.5 · High EPSS 0.54% · P44
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I. Basic Information for CVE-2025-30153

Vulnerability Information
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Vulnerability Title
Improper Handling of Highly Compressed Data (Data Amplification) in github.com/getkin/kin-openapi/openapi3filter
Source: CVE Program / CVE List V5
Vulnerability Description
kin-openapi is a Go project for handling OpenAPI files. Prior to 0.131.0, when validating a request with a multipart/form-data schema, if the OpenAPI schema allows it, an attacker can upload a crafted ZIP file (e.g., a ZIP bomb), causing the server to consume all available system memory. The root cause comes from the ZipFileBodyDecoder, which is registered automatically by the module (contrary to what the documentation says). This vulnerability is fixed in 0.131.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对高度压缩数据的处理不恰当(数据放大攻击)
Source: CVE Program / CVE List V5
Vulnerability Title
kin-openapi 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
kin-openapi是getkin开源的一个 Go 的 OpenAPI 3.0 实现（解析、转换、验证等）。 kin-openapi 0.131.0之前版本存在安全漏洞，该漏洞源于处理multipart/form-data请求时可能导致内存耗尽。
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

Vendor Product Affected Versions CPE Subscribe
getkin kin-openapi < 0.131.0 -

II. Public POCs for CVE-2025-30153

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 8934 chars
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III. Intelligence Information for CVE-2025-30153

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Patches & Fixes for CVE-2025-30153 (3)

Vendor Advisories for CVE-2025-30153 (1)

Other References for CVE-2025-30153 (1)

IV. Related Vulnerabilities

Same product: kin-openapi
Same vendor: getkin
Same weakness: CWE-409

V. Comments for CVE-2025-30153

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