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JLSEC-2026-1157 nghttp2's nghttpx proxy through 1.69.0 forwards an HTTP/1.1 Upgrade request that also carries a...

🗓️ 03 Aug 2026 19:27:41Reported by GoogleType 
osv_jlsec
 osv_jlsec
🔗 osv.dev👁 20 Views

nghttpx proxy forwards Upgrade with Content-Length to keep-alive backends, enabling request smuggling.

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03 Aug 2026 19:35Current
6.5Medium risk
Vulners AI Score6.5
CVSS 3.15.4
CVSS 46.3
EPSS0.00253
20