CVE-2026-125108: fallo de gravedad baja en rack
Rack: Multipart boundary ambiguity guard in Rack::Multipart::Parser can be bypassed with a quoted boundary value, allowing WAF bypass
Publicada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
5Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 3.7
Rack is a modular Ruby web server interface. Prior to 2.2.25, 3.1.23, and 3.2.8, Rack::Multipart::Parser.parse_boundary can skip a leading empty or quoted boundary parameter in a multipart Content-Type header and accept a later parameter. Rack can therefore parse a request body with a boundary that a conforming intermediary would not derive, allowing form fields or file uploads to reach an application without the intended proxy or web application firewall inspection. This issue is fixed in versions 2.2.25, 3.1.23, and 3.2.8.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Productos afectados
rack · rackCVEs relacionadas — rack
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Referencias
https://github.com/rack/rack/commit/19a1a19cb4da97d61c8d5effeb2e927c44370ae9https://github.com/rack/rack/commit/a29512324265790a5536b830490075d0d79323behttps://github.com/rack/rack/commit/d5e928b803da30b8e40171dbd4be39bed7daa6fahttps://github.com/rack/rack/releases/tag/v2.2.25https://github.com/rack/rack/releases/tag/v3.1.23https://github.com/rack/rack/releases/tag/v3.2.8https://github.com/rack/rack/security/advisories/GHSA-p8x9-v4hv-2w4g