Bug 2468562 (CVE-2026-6735)

Summary: CVE-2026-6735 PHP: PHP-FPM: PHP-FPM: Cross-Site Scripting vulnerability via improper URL sanitation
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: jkoehler, lphiri, rhel-process-autobot, sdawley, watson-tool-maintainers
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Fixed In Version: Doc Type: ---
Doc Text:
A flaw was found in PHP, specifically within the PHP-FPM status page. Due to improper sanitation of user data, a remote attacker can craft a malicious URL. When a user views the PHP-FPM status page with this crafted URL, it can lead to the execution of arbitrary JavaScript code (Cross-Site Scripting or XSS) on their machine, potentially compromising their browser session or leading to further attacks.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2026-05-10 05:01:14 UTC
In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, 8.5.* before 8.5.6, due to improper sanitation of user data, it allows an attacker to compose an URL, which will cause the target to execute arbitrary JavaScript code (XSS) on the target's machine when the target is viewing the PHP-FPM status page.

Comment 2 errata-xmlrpc 2026-06-01 02:47:14 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:22143 https://access.redhat.com/errata/RHSA-2026:22143

Comment 3 errata-xmlrpc 2026-06-01 03:05:44 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:22142 https://access.redhat.com/errata/RHSA-2026:22142

Comment 4 errata-xmlrpc 2026-06-01 10:53:50 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:22305 https://access.redhat.com/errata/RHSA-2026:22305

Comment 5 errata-xmlrpc 2026-06-02 22:08:04 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:22649 https://access.redhat.com/errata/RHSA-2026:22649

Comment 6 errata-xmlrpc 2026-06-04 15:53:45 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:23388 https://access.redhat.com/errata/RHSA-2026:23388

Comment 7 errata-xmlrpc 2026-06-30 10:46:06 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:33449 https://access.redhat.com/errata/RHSA-2026:33449

Comment 8 errata-xmlrpc 2026-07-01 16:49:59 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:34354 https://access.redhat.com/errata/RHSA-2026:34354