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-2026-54230 [HIGH] – A symlink following vulnerability was found in the ABRT post-create event handler scripts

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A symlink following vulnerability was found in the ABRT post-create event handler scripts in libreport. Event scripts write output files using shell redirections without the O_NOFOLLOW flag. If the target file is replaced with a symlink, the shell process running as root follows the symlink and writes content to the symlink target, allowing arbitrary file overwrites on the system.