SB2026091558 - Information disclosure in WebKitGTK+ and WPE WebKit
Published: September 15, 2026
Security Bulletin ID
SB2026091558
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Protection mechanism failure (CVE-ID: CVE-2026-65352)
CWE-ID: CWE-693 - Protection Mechanism Failure
CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output in WebKit. A remote attacker can trick the victim into visiting a specially crafted website and determine user's IP address with Private Relay turned on.
Remediation
Install update from vendor's website.