Vulnerability Details CVE-2025-1861
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 25.8%
CVSS Severity
CVSS v3 Score 9.8
Products affected by CVE-2025-1861