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-2026-6893 [HIGH] – A flaw was found in dracut. A remote attacker on the adjacent network can exploit this vul

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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.