CVE-2025-9901 (GCVE-0-2025-9901)

Vulnerability from cvelistv5 – Published: 2025-09-03 12:32 – Updated: 2026-11-05 16:09
VLAI
Title
Libsoup: improper handling of http vary header in libsoup caching
Summary
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.
Severity
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-09-03 13:59 UTC
CWE
  • CWE-524 - Use of Cache Containing Sensitive Information
Assigner
redhat CNA
References
Impacted products
Date Public
2025-09-03 00:00
Credits
Red Hat would like to thank zkbytes for reporting this issue.
Show details on NVD website
To clipboard 

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