CVE-2026-67607 - LightFTP 2.3.1 Race Condition DoS via worker_thread_cleanup

CVE-2026-67607 - LightFTP 2.3.1 Race Condition DoS via worker_thread_cleanup

https://cvefeed.io/rssfeed/latest.atom / Fri, 07/31/2026 - 19:08
CVE ID :CVE-2026-67607
Published : July 31, 2026, 4:17 p.m. | 36 minutes ago
Description :LightFTP 2.3.1 contains a race condition vulnerability that allows remote attackers to crash the server by racing a fresh connection that reuses the FTP context against an in-progress ABRT cleanup. Attackers can exploit the unprotected re-check of WorkerThreadId between worker_thread_cleanup() and pthread_join() outside of MTLock to cause pthread_join() to operate on an invalid thread ID, resulting in a server crash. CVE-2024-11144 identifies an incomplete fix of this vulnerability.
Severity: 8.2 | HIGH
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