一线运维实战手记 · 云计算 · 数据库 · 故障排查
2026年9月4日

CVE-2026-15816 [HIGH] – A flaw was found in dracut. The die() error-handling function writes its message into a sh

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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.