VDB

CVE-2026-15816

CVE-2026-15816 PUBLISHED CVSS 7.5 HIGH

Reported by redhat · Published August 7, 2026

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.

Risk Scores

CVSS 3.1
7.5
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products

VendorProductVersions
Red HatRed Hat Enterprise Linux 100:107-9.el10_2
Red HatRed Hat Enterprise Linux 10.0 Extended Update Support0:105-4.el10_0.1
Red HatRed Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION0:004-413.el6_10
Red HatRed Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION0:004-414.el6_10
Red HatRed Hat Enterprise Linux 7 Extended Lifecycle Support0:033-577.el7_9
Red HatRed Hat Enterprise Linux 80:049-246.git20260728.el8_10
Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support0:049-138.git20220131.el8_4.1
Red HatRed Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On0:049-138.git20220131.el8_4.1
Red HatRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support0:049-203.git20220511.el8_6.1
Red HatRed Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On0:049-203.git20220511.el8_6.1
Red HatRed Hat Enterprise Linux 8.8 Telecommunications Update Service0:049-223.git20230119.el8_8.1
Red HatRed Hat Enterprise Linux 8.8 Update Services for SAP Solutions0:049-223.git20230119.el8_8.1
Red HatRed Hat Enterprise Linux 90:057-120.git20260728.el9_8
Red HatRed Hat Enterprise Linux 90:057-120.git20260728.el9_8
Red HatRed Hat Enterprise Linux 9.2 Update Services for SAP Solutions0:057-25.git20250717.el9_2.2
Red HatRed Hat Enterprise Linux 9.4 Update Services for SAP Solutions0:057-54.git20250423.el9_4.3
Red HatRed Hat Enterprise Linux 9.6 Extended Update Support0:057-89.git20250311.el9_6.1
Red HatRed Hat OpenShift Container Platform 4.13413.92.202609080414-0
Red HatRed Hat OpenShift Container Platform 4.14414.92.202609011250-0
Red HatRed Hat OpenShift Container Platform 4.15415.92.202609140326-0

…and 52 more

Timeline

  • Aug 7, 2026 Coalition ESS Score
  • Aug 7, 2026 CVE Published
  • Aug 8, 2026 EPSS Score
  • Aug 9, 2026 Security Advisory
  • Aug 16, 2026 Distribution Patch
  • Aug 16, 2026 Security Advisory
  • Aug 16, 2026 Distribution Patch
  • Aug 16, 2026 Security Advisory
  • Aug 16, 2026 Distribution Patch
  • Aug 16, 2026 Security Advisory
  • Aug 23, 2026 Distribution Patch
  • Aug 23, 2026 Security Advisory

References

…and 10 more

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