CVE-2026-6893: Red Hat Enterprise Linux 10

High severity, CVSS 7.5. EPSS: 3.1% chance of exploitation in the next 30 days.

A flaw was found in dracut. A remote attacker on the adjacent network can exploit this vulnerability by providing specially crafted DHCP (Dynamic Host Configuration Protocol) options, such as a malicious hostname, to a system using dracut's legacy DHCP path. These options are improperly handled and written into temporary shell scripts without proper escaping, leading to command injection. This allows the attacker to achieve root code execution within the initramfs, potentially compromising the system's boot and network behavior.

Affected products

• Red Hat Red Hat Enterprise Linux 10: before 0:107-7.el10_2 (fixed in 0:107-7.el10_2)
• Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support: before 0:105-4.el10_0.1 (fixed in 0:105-4.el10_0.1)
• Red Hat Red Hat Enterprise Linux 6
• Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - Extension: before 0:004-413.el6_10 (fixed in 0:004-413.el6_10); before 0:004-414.el6_10 (fixed in 0:004-414.el6_10)
• Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support: before 0:033-577.el7_9 (fixed in 0:033-577.el7_9)
• Red Hat Red Hat Enterprise Linux 8: before 0:049-244.git20260529.el8_10 (fixed in 0:049-244.git20260529.el8_10)
• Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support: before 0:049-138.git20220131.el8_4.1 (fixed in 0:049-138.git20220131.el8_4.1)
• Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On: before 0:049-138.git20220131.el8_4.1 (fixed in 0:049-138.git20220131.el8_4.1)
• Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support: before 0:049-203.git20220511.el8_6.1 (fixed in 0:049-203.git20220511.el8_6.1)
• Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On: before 0:049-203.git20220511.el8_6.1 (fixed in 0:049-203.git20220511.el8_6.1)
• Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service: before 0:049-223.git20230119.el8_8.1 (fixed in 0:049-223.git20230119.el8_8.1)
• Red Hat Red Hat Enterprise Linux 8.8 Update Services For SAP Solutions: before 0:049-223.git20230119.el8_8.1 (fixed in 0:049-223.git20230119.el8_8.1)
• Red Hat Red Hat Enterprise Linux 9: before 0:057-115.git20260527.el9_8 (fixed in 0:057-115.git20260527.el9_8)
• Red Hat Red Hat Enterprise Linux 9.2 Update Services For SAP Solutions: before 0:057-25.git20250717.el9_2.2 (fixed in 0:057-25.git20250717.el9_2.2)
• Red Hat Red Hat Enterprise Linux 9.4 Update Services For SAP Solutions: before 0:057-54.git20250423.el9_4.3 (fixed in 0:057-54.git20250423.el9_4.3)
• Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support: before 0:057-89.git20250311.el9_6.1 (fixed in 0:057-89.git20250311.el9_6.1)
• Red Hat Red Hat Hardened Images: before 109-6.hum1 (fixed in 109-6.hum1)
• Red Hat Red Hat Openshift Container Platform 4
• Red Hat Red Hat Openshift Container Platform 4.13: before 413.92.202609080414-0 (fixed in 413.92.202609080414-0)
• Red Hat Red Hat Openshift Container Platform 4.14: before 414.92.202609011250-0 (fixed in 414.92.202609011250-0)
• Red Hat Red Hat Openshift Container Platform 4.15: before 415.92.202609140326-0 (fixed in 415.92.202609140326-0)
• Red Hat Red Hat Openshift Container Platform 4.16: before 416.94.202609011112-0 (fixed in 416.94.202609011112-0)
• Red Hat Red Hat Openshift Container Platform 4.17: before 417.94.202609191027-0 (fixed in 417.94.202609191027-0)
• Red Hat Red Hat Openshift Container Platform 4.18: before 418.94.202609031320-0 (fixed in 418.94.202609031320-0); before 418.94.202609171815-0 (fixed in 418.94.202609171815-0)
• Red Hat Red Hat Openshift Container Platform 4.19: before 4.19.9.6.202609021231-0 (fixed in 4.19.9.6.202609021231-0)

Published 2026-06-10. Last modified 2026-10-08.