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Untriaged
Permalink CVE-2025-4035
4.3 MEDIUM
  • CVSS version: 3.1
  • Attack vector (AV): NETWORK
  • Attack complexity (AC): LOW
  • Privileges required (PR): NONE
  • User interaction (UI): REQUIRED
  • Scope (S): UNCHANGED
  • Confidentiality impact (C): NONE
  • Integrity impact (I): LOW
  • Availability impact (A): NONE
created 11 months, 2 weeks ago
Libsoup: cookie domain validation bypass via uppercase characters in libsoup

A flaw was found in libsoup. When handling cookies, libsoup clients mistakenly allow cookies to be set for public suffix domains if the domain contains at least two components and includes an uppercase character. This bypasses public suffix protections and could allow a malicious website to set cookies for domains it does not own, potentially leading to integrity issues such as session fixation.

References

Affected products

libsoup
libsoup3
  • *

Matching in nixpkgs

pkgs.libsoup_3

HTTP client/server library for GNOME

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