Out-of-bounds read in the HTTP stream wrapper when following a redirect with an empty Location header
En bref
Sévérité
MEDIUM 5.8
EPSS
EPSS 0.34 % · centile 27 (2026-10-27)
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
php
Statut NVD
Analyzed
Description
When the HTTP stream wrapper follows a redirect and the response carries a Location header with an empty value, the redirect code reads one byte past the end of the heap buffer holding the location. The value of that out-of-bounds byte decides which redirect target is built, so a malicious server controls whether the client is sent to the host root or to the current directory.
