Hi,

The following vulnerability was published for phpsysinfo.

CVE-2026-55584[0]:
| phpSysInfo is a customizable PHP script that displays system
| information. Prior to 3.4.6, the PSI_ALLOWED access-control check in
| read_config.php trusts attacker-controlled X-Forwarded-For and
| Client-IP HTTP headers before REMOTE_ADDR. A remote unauthenticated
| attacker can supply an allowed address in one of these headers to
| impersonate a trusted client and access exposed hostname, kernel,
| CPU, memory, filesystem, and network-interface information. This
| issue is fixed in version 3.4.6.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2026-55584
https://www.cve.org/CVERecord?id=CVE-2026-55584
[1] https://github.com/phpsysinfo/phpsysinfo/security/advisories/GHSA-786w-p5pm-cvgh
[2] https://github.com/phpsysinfo/phpsysinfo/commit/019fa2d7e568ea11461adb4bd33da5dc87c4b9ab

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore