AUGUST 4, 2026
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Case File

CVE-2025-1861

CRITICAL · CVSS 9.8 EPSS 0.82% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2025-03-30 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2025-1861
Severity
CRITICAL
CVSS
9.8
EPSS
0.82%

Original NVD 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 parsing HTTP redirect in the response to an HTTP request, there is currently limit on the location value size caused by limited size of the location buffer to 1024. However as per RFC9110, the limit is recommended to be 8000. This may lead to incorrect URL truncation and redirecting to a wrong location.

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