CVE-2025-11021: Red Hat Enterprise Linux 10

High severity, CVSS 7.5. EPSS: 0.6% chance of exploitation in the next 30 days.

A flaw was found in the cookie date handling logic of the libsoup HTTP library, widely used by GNOME and other applications for web communication. When processing cookies with specially crafted expiration dates, the library may perform an out-of-bounds memory read. This flaw could result in unintended disclosure of memory contents, potentially exposing sensitive information from the process using libsoup.

Affected products

  • Red Hat Red Hat Enterprise Linux 10: before 0:3.6.5-3.el10_0.7 (fixed in 0:3.6.5-3.el10_0.7); before 0:3.6.5-3.el10_1.6 (fixed in 0:3.6.5-3.el10_1.6)
  • Red Hat Red Hat Enterprise Linux 6
  • Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support: before 0:2.62.2-9.el7_9 (fixed in 0:2.62.2-9.el7_9)
  • Red Hat Red Hat Enterprise Linux 8: before 0:2.62.3-10.el8_10 (fixed in 0:2.62.3-10.el8_10)
  • Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support: before 0:2.62.3-1.el8_2.6 (fixed in 0:2.62.3-1.el8_2.6)
  • Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support: before 0:2.62.3-2.el8_4.6 (fixed in 0:2.62.3-2.el8_4.6)
  • Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On: before 0:2.62.3-2.el8_4.6 (fixed in 0:2.62.3-2.el8_4.6)
  • Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support: before 0:2.62.3-2.el8_6.6 (fixed in 0:2.62.3-2.el8_6.6)
  • Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service: before 0:2.62.3-2.el8_6.6 (fixed in 0:2.62.3-2.el8_6.6)
  • Red Hat Red Hat Enterprise Linux 8.6 Update Services For SAP Solutions: before 0:2.62.3-2.el8_6.6 (fixed in 0:2.62.3-2.el8_6.6)
  • Red Hat Red Hat Enterprise Linux 8.8 Update Services For SAP Solutions: before 0:2.62.3-3.el8_8.6 (fixed in 0:2.62.3-3.el8_8.6)
  • Red Hat Red Hat Enterprise Linux 9: before 0:2.72.0-10.el9_6.3 (fixed in 0:2.72.0-10.el9_6.3); before 0:2.72.0-12.el9_7.1 (fixed in 0:2.72.0-12.el9_7.1)
  • Red Hat Red Hat Enterprise Linux 9.0 Update Services For SAP Solutions: before 0:2.72.0-8.el9_0.6 (fixed in 0:2.72.0-8.el9_0.6)
  • Red Hat Red Hat Enterprise Linux 9.2 Update Services For SAP Solutions: before 0:2.72.0-8.el9_2.6 (fixed in 0:2.72.0-8.el9_2.6)
  • Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support: before 0:2.72.0-8.el9_4.6 (fixed in 0:2.72.0-8.el9_4.6)

Published 2025-09-26. Last modified 2026-06-29.