cvedb.io
CVE-2025-9901
MEDIUM · CVSS 5.9
EPSS exploitation probability: 0%
Published 2025-09-03T13:15:50.133 · Last modified 2026-06-30T03:17:01.977

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.

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.