BIT-libphp-2026-91768

See a problem?

Import Source

https://github.com/bitnami/vulndb/tree/main/data/libphp/BIT-libphp-2026-91768.json

JSON Data

https://api.osv.dev/v1/vulns/BIT-libphp-2026-91768

Aliases

Published

2026-10-01T09:29:26Z

Modified

2026-10-01T10:11:17Z

Summary

IPv6 ACL bypass in FastCGI listen.allowed_clients due to partial address comparison (memcmp 12 bytes)

Details

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.

Database specific

{
    "cpes":  [
        "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*"
    ],
    "severity":  "Medium"
}

References

Affected packages

Bitnami / libphp

Package

Name: libphp
Purl: pkg:bitnami/libphp

Severity

6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator

Affected ranges

Type: SEMVER
Events: Introduced

8.2.0

Fixed

8.2.34

Introduced

8.3.0

Fixed

8.3.35

Introduced

8.4.0

Fixed

8.4.26

Introduced

8.5.0

Fixed

8.5.11

Database specific

source

"https://github.com/bitnami/vulndb/tree/main/data/libphp/BIT-libphp-2026-91768.json"