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CVE-2026-15816

Dracut: dracut: root code execution via unescaped error message written to sourced emergency hook script in die() PUBLISHED

Description (CNA)

A flaw was found in dracut. The die() error-handling function writes its message into a shell script under the initramfs emergency-hook directory without properly shell-quoting it. When the message contains data derived from the DHCP ROOT_PATH option, an attacker on the adjacent network who controls a rogue DHCP server can inject a command-substitution sequence that executes as root the next time dracut sources its emergency hook scripts during standard boot-failure handling.

Affected (CNA)

Vendor / productVersions
Red Hat / Red Hat Enterprise Linux 10unaffected 0:107-9.el10_2 before *
Red Hat / Red Hat Enterprise Linux 10.0 Extended Update Supportunaffected 0:105-4.el10_0.1 before *
Red Hat / Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSIONunaffected 0:004-413.el6_10 before *
Red Hat / Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSIONunaffected 0:004-414.el6_10 before *
Red Hat / Red Hat Enterprise Linux 7 Extended Lifecycle Supportunaffected 0:033-577.el7_9 before *
Red Hat / Red Hat Enterprise Linux 8unaffected 0:049-246.git20260728.el8_10 before *
Red Hat / Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportunaffected 0:049-138.git20220131.el8_4.1 before *
Red Hat / Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-Onunaffected 0:049-138.git20220131.el8_4.1 before *
Red Hat / Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Supportunaffected 0:049-203.git20220511.el8_6.1 before *
Red Hat / Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-Onunaffected 0:049-203.git20220511.el8_6.1 before *
Red Hat / Red Hat Enterprise Linux 8.8 Telecommunications Update Serviceunaffected 0:049-223.git20230119.el8_8.1 before *
Red Hat / Red Hat Enterprise Linux 8.8 Update Services for SAP Solutionsunaffected 0:049-223.git20230119.el8_8.1 before *
Red Hat / Red Hat Enterprise Linux 9unaffected 0:057-120.git20260728.el9_8 before *
Red Hat / Red Hat Enterprise Linux 9unaffected 0:057-120.git20260728.el9_8 before *
Red Hat / Red Hat Enterprise Linux 9.2 Update Services for SAP Solutionsunaffected 0:057-25.git20250717.el9_2.2 before *
Red Hat / Red Hat Enterprise Linux 9.4 Update Services for SAP Solutionsunaffected 0:057-54.git20250423.el9_4.3 before *
Red Hat / Red Hat Enterprise Linux 9.6 Extended Update Supportunaffected 0:057-89.git20250311.el9_6.1 before *
Red Hat / Red Hat OpenShift Container Platform 4.13unaffected 413.92.202609080414-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.14unaffected 414.92.202609011250-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.15unaffected 415.92.202609140326-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.16unaffected 416.94.202609011112-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.17unaffected 417.94.202609191027-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.18unaffected 418.94.202609031320-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.18unaffected 418.94.202609171815-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.19unaffected 4.19.9.6.202609021231-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.20unaffected 4.20.9.6.202608260604-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.21unaffected 4.21.9.6.202609021100-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.22unaffected 4.22.9.8.202608251819-0 before *
Red Hat / Red Hat OpenShift Container Platform 4.22unaffected 4.22.9.8.202609081748-0 before *
Red Hat / Red Hat Hardened Imagesunaffected
Red Hat / Red Hat OpenShift Container Platform 4affected

CWE

CWE-78

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.