CVE Watch14 oct 2026

CVE-2026-108981

ngx_cache_purge before 3.0.4 can allow file deletion via a symlink attack in certain situations where nginx and a served application (e.g.,

CVSS

3.6

Bajo

EPSS

0.1%

KEV

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Exploit Today

0-100

Publicado: 12 oct 2026 · Última mod.: 14 oct 2026 · CWE-61

EPSS · 30d

0.1%EPSS · 30 días0.1%

2026-10-122026-10-14

Descripción técnica

ngx_cache_purge before 3.0.4 can allow file deletion via a symlink attack in certain situations where nginx and a served application (e.g., WordPress) run under the same user account. The attacker must be able to create a symlink inside the cache path. Version 3.0.4 fixes this for the case of a symlink created at an arbitrary earlier time, but does not resolve an applicable TOCTOU race condition. (The ngx_cache_purge module follows symlinks while walking the cache directory tree during purge operations. The module relies on nginx's ngx_walk_tree(), which relies on stat() and therefore follows symlinks.)

Referencias oficiales

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