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CVE-2025-1734— Streams HTTP wrapper does not fail for headers with invalid name and no colon

Quick assessment

Affected
PHP Group PHP
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.

PHP是PHP的一种在服务器端执行的脚本语言。 PHP 8.1.32之前版本、8.2.28之前版本、8.3.19之前版本和8.4.5之前版本存在安全漏洞，该漏洞源于从HTTP服务器接收标头时，缺少冒号的标头被错误地视为有效标头，可能导致应用程序接受无效标头。

AI Predicted 7.5 Difficulty: Easy EPSS 0.49% · P40

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-1734

Vulnerability Information
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Vulnerability Title
Streams HTTP wrapper does not fail for headers with invalid name and no colon
Source: CVE Program / CVE List V5
Vulnerability Description
In PHP from 8.1.* before 8.1.32, from 8.2.* before 8.2.28, from 8.3.* before 8.3.19, from 8.4.* before 8.4.5, when receiving headers from HTTP server, the headers missing a colon (:) are treated as valid headers even though they are not. This may confuse applications into accepting invalid headers.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
PHP 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PHP是PHP的一种在服务器端执行的脚本语言。 PHP 8.1.32之前版本、8.2.28之前版本、8.3.19之前版本和8.4.5之前版本存在安全漏洞，该漏洞源于从HTTP服务器接收标头时，缺少冒号的标头被错误地视为有效标头，可能导致应用程序接受无效标头。
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
PHP Group PHP 8.1.* ~ 8.1.32 -

II. Public POCs for CVE-2025-1734

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III. Intelligence Information for CVE-2025-1734

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Vendor Advisories for CVE-2025-1734 (1)

Same Patch Batch · PHP Group · 2025-03-30 · 4 CVEs total

CVE-2025-1219 libxml streams use wrong content-type header when requesting a redirected resource
CVE-2025-1736 Stream HTTP wrapper header check might omit basic auth header
CVE-2025-1861 Stream HTTP wrapper truncates redirect location to 1024 bytes

IV. Related Vulnerabilities

Same product: PHP
Same vendor: PHP Group
Same weakness: CWE-20

V. Comments for CVE-2025-1734

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