Use of cache containing sensitive information in libsoup - CVE-2025-9901
Published: September 9, 2025
Vulnerability identifier: #VU115012
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-9901
CWE-ID: CWE-524
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists in SoupCache due to the HTTP Vary header being ignored when evaluating cached response. A remote attacker can gain access to sensitive information that was cached by the application.
Affected software
libsoup
How to mitigate CVE-2025-9901
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.