CVE search · CVE-2026-91768
CVE-2026-91768
medium 6.5
The IPv6 branch of the FastCGI client access check compares only the first 12 bytes of a 16-byte IPv6 address, so listen.allowed_clients matches on a /96 prefix instead of the exact address. An attacker who can source an address sharing the first 96 bits with an allowed one passes the check and reaches the FastCGI endpoint.
Details
- Status
- Analyzed
- Published
- Last changed
- Source
- security@php.net
- Weakness
- CWE-1023
Severity
| Version | Score | Vector | Source |
|---|---|---|---|
| CVSS 3.1 | medium 6.5 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
security@php.netSecondary |
Affected products
Vendor and product from the NVD’s CPE applicability statements. Versions and conditions are on the NVD’s page.
- php · php