CVE-2026-125371: fallo de gravedad media en tinyproxy
Tinyproxy through 1.11.3 Hostname ACL Allow-List Bypass via Suffix Match
Publicada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
10Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 6.3
Tinyproxy through 1.11.3 contains an access control bypass vulnerability in acl_string_processing() in src/acl.c that compares only trailing hostname characters without checking DNS label boundaries. Attackers controlling the PTR record for their source IP, such as untrusted.net, can satisfy an 'Allow trusted.net' entry to use the proxy despite deny-by-default ACLs.
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Productos afectados
tinyproxy · tinyproxyCVEs relacionadas — tinyproxy
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Referencias
https://github.com/tinyproxy/tinyproxyhttps://github.com/tinyproxy/tinyproxy/blob/1.11.3/src/acl.c#L156-L174https://github.com/tinyproxy/tinyproxy/commit/3991ac8f98c6a9f05b3265018b812dbf2ca92c28https://github.com/tinyproxy/tinyproxy/issues/627https://www.vulncheck.com/advisories/tinyproxy-through-1.11.3-hostname-acl-allow-list-bypass-via-suffix-match