CVE-2026-62294— Flameshot 因预测性 /tmp 路径导致符号链接攻击漏洞

Flameshot: OCTOU symlink attack via predictable /tmp path in Flameshot "Open With"

Flameshot is powerful yet simple to use screenshot software. Prior to 14.0.0, the Open With feature wrote screenshots to a predictable temporary path and followed symlinks, creating a time-of-check to time-of-use race that allowed a local unprivileged attacker on the same machine to pre-plant a symlink and cause Flameshot to write PNG data through it, overwriting any file the victim user could write. This issue is fixed in version 14.0.0.

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使用共享资源的并发执行不恰当同步问题(竞争条件)