5.9 CVE-2025-9901

Enriched by CISA
 

A flaw was found in libsoup’s caching mechanism, SoupCache, where the HTTP Vary header is ignored when evaluating cached responses. This header ensures that responses vary appropriately based on request headers such as language or authentication. Without this check, cached content can be incorrectly reused across different requests, potentially exposing sensitive user information. While the issue is unlikely to affect everyday desktop use, it could result in confidentiality breaches in proxy or multi-user environments.
https://nvd.nist.gov/vuln/detail/CVE-2025-9901

Categories

CWE-524 : Use of Cache Containing Sensitive Information
Applications may use caches to improve efficiency when communicating with remote entities or performing intensive calculations. A cache maintains a pool of objects, threads, connections, pages, financial data, passwords, or other resources to minimize the time it takes to initialize and access these resources. If the cache is accessible to unauthorized actors, attackers can read the cache and obtain this sensitive information.

References


 

AFFECTED (from MITRE)


Vendor Product Versions
Red Hat Red Hat Enterprise Linux 10
    Red Hat Red Hat Enterprise Linux 6
      Red Hat Red Hat Enterprise Linux 7
        Red Hat Red Hat Enterprise Linux 8
          Red Hat Red Hat Enterprise Linux 9
            © 2022 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation.

            CPE

            cpe start end


            REMEDIATION




            EXPLOITS


            Exploit-db.com

            id description date
            No known exploits

            POC Github

            Url
            No known exploits

            Other Nist (github, ...)

            Url
            No known exploits


            CAPEC


            Common Attack Pattern Enumerations and Classifications

            id description severity
            204 Lifting Sensitive Data Embedded in Cache
            Medium


            MITRE


            Techniques

            id description
            T1005 Data from Local System
            © 2022 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation.

            Mitigations

            id description
            M1057 Data loss prevention can restrict access to sensitive data and detect sensitive data that is unencrypted.
            © 2022 The MITRE Corporation. Esta obra se reproduce y distribuye con el permiso de The MITRE Corporation.