CVE-2026-93682
Medium
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.
SeverityMedium
CVSS5.8
Exploit probability—
Product
Php
PublishedSep 25, 2026
First seenSep 25, 2026
Weakness typeCWE-125Out-of-bounds read
How to fix
Update
- php php8.2.34, 8.3.35, 8.4.26, 8.5.11 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| php php | 8.2.0 ≤ v < 8.2.34, 8.3.0 ≤ v < 8.3.35, 8.4.0 ≤ v < 8.4.26, 8.5.0 ≤ v < 8.5.11 | 8.2.34, 8.3.35, 8.4.26, 8.5.11 |
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