CVE-2025-1734

MEDIUM

PHP 8.1.0-8.1.31, 8.2.0-8.2.27, 8.3.0-8.3.18, 8.4.0-8.4.4 - Improper Input Validation in HTTP Header Parsing

Title source: llm
STIX 2.1

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.

References (3)

Core 3

Scores

CVSS v3 5.3
EPSS 0.0076
EPSS Percentile 73.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-20
Status published
Products (2)
netapp/ontap 9
php/php 8.1.0 - 8.1.32
Published Mar 30, 2025
Tracked Since Feb 18, 2026