ALPINE-CVE-2026-58055

ALPINE-CVE-2026-58055

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nghttp2's nghttpx proxy through 1.69.0 forwards an HTTP/1.1 Upgrade request that also carries a Content-Length header and body onto reusable keep-alive backend connections, re-adding the Upgrade and Connection headers while passing Content-Length verbatim. A backend that resolves the resulting ambiguous message in the attacker's favor enables HTTP request/response smuggling and cross-client response-queue poisoning.

CVSS 6.3 · Moyenne · Correctif disponible

Publication

2026-06-28T02:16:32.677Z

Mise à jour

2026-10-01T13:30:02.960852065Z

Pile logicielle: system

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