cvedb.io
CVE-2025-1861
CRITICAL · CVSS 9.8
EPSS exploitation probability: 0%
Published 2025-03-30T06:15:14.957 · Last modified 2026-06-17T08:39:55.240

Summary

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.

Affected products

php — php

Does this affect you?

Add your gear to cvedb and we'll alert you only when php ships something exploited.

Check my exposure →

References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.