CVE-2026-4802: Red Hat Enterprise Linux 10

High severity, CVSS 8.0. EPSS: 1.2% chance of exploitation in the next 30 days.

A flaw was found in Cockpit. This vulnerability allows a remote attacker to achieve arbitrary command execution on the host by exploiting unsanitized user-controlled parameters within crafted links in the system logs user interface (UI). An attacker can inject shell metacharacters and command substitutions into these parameters, leading to the execution of arbitrary shell commands on the affected system. This could result in a complete system compromise.

Affected products

  • Red Hat Red Hat Enterprise Linux 10: before 0:356.2-1.el10_2 (fixed in 0:356.2-1.el10_2)
  • Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support: before 0:334.2-1.el10_0 (fixed in 0:334.2-1.el10_0)
  • Red Hat Red Hat Enterprise Linux 7
  • Red Hat Red Hat Enterprise Linux 8: before 0:310.8-1.el8_10 (fixed in 0:310.8-1.el8_10)
  • Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support: before 0:264.3-1.el8_6 (fixed in 0:264.3-1.el8_6)
  • Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service: before 0:264.3-1.el8_6 (fixed in 0:264.3-1.el8_6)
  • Red Hat Red Hat Enterprise Linux 8.6 Update Services For SAP Solutions: before 0:264.3-1.el8_6 (fixed in 0:264.3-1.el8_6)
  • Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service: before 0:286.2-1.el8_8 (fixed in 0:286.2-1.el8_8)
  • Red Hat Red Hat Enterprise Linux 8.8 Update Services For SAP Solutions: before 0:286.2-1.el8_8 (fixed in 0:286.2-1.el8_8)
  • Red Hat Red Hat Enterprise Linux 9: before 0:356.2-1.el9_8 (fixed in 0:356.2-1.el9_8)
  • Red Hat Red Hat Enterprise Linux 9.0 Update Services For SAP Solutions: before 0:264.3-1.el9_0 (fixed in 0:264.3-1.el9_0)
  • Red Hat Red Hat Enterprise Linux 9.2 Update Services For SAP Solutions: before 0:286.3-1.el9_2 (fixed in 0:286.3-1.el9_2)
  • Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support: before 0:311.3-1.el9_4 (fixed in 0:311.3-1.el9_4)
  • Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support: before 0:334.3-1.el9_6 (fixed in 0:334.3-1.el9_6)

Published 2026-05-11. Last modified 2026-07-15.