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CVE-2025-7339— on-headers vulnerable to http response header manipulation

Quick assessment

Affected
jshttp on-headers
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

on-headers是jshttp开源的一个应用软件。 on-headers 1.1.0版本存在安全漏洞，该漏洞源于传递数组到response.writeHead时可能无意修改响应头。

CVSS 3.4 · Low EPSS 0.21% · P11

Possible ATT&CK Techniques 1 AI

T1562
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I. Basic Information for CVE-2025-7339

Vulnerability Information
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Vulnerability Title
on-headers vulnerable to http response header manipulation
Source: CVE Program / CVE List V5
Vulnerability Description
on-headers is a node.js middleware for listening to when a response writes headers. A bug in on-headers versions `<1.1.0` may result in response headers being inadvertently modified when an array is passed to `response.writeHead()`. Users should upgrade to version 1.1.0 to receive a patch. Uses are strongly encouraged to upgrade to `1.1.0`, but this issue can be worked around by passing an object to `response.writeHead()` rather than an array.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
非预期数据类型处理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
on-headers 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
on-headers是jshttp开源的一个应用软件。 on-headers 1.1.0版本存在安全漏洞，该漏洞源于传递数组到response.writeHead时可能无意修改响应头。
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
jshttp on-headers 0 ~ 1.1.0 -

II. Public POCs for CVE-2025-7339

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III. Intelligence Information for CVE-2025-7339

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IV. Related Vulnerabilities

Same vendor: jshttp
Same weakness: CWE-241