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Threatist priority CRITICAL 0 HIGH 0 MEDIUM 1 LOW 1

Signals Exploited in the wild (KEV) 0 Patch available 2 No fix listed 0 Has CVE 2

Fix status Fixed 2 Partial 0 Will not fix 0 Deferred 0 No fix listed 0

Attack vector Network 2 Adjacent network 0 Local 0 Physical 0

Requirements No authentication 2 No user interaction 2

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Weakness (CWE) CWE-444 Inconsistent Interpretation of HTTP Requests 2

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Release: Cloudflare https://github.com/cloudflare/pingora 0.9.0 × Clear all filters

TI-2026-76709 CVE-2026-105299 · GHSA-r9g2-75m7-w9wg

Connection header nomination lets attackers strip headers in Pingora

Priority MEDIUM 40

Summary Before version 0.9.0, the HTTP/1 upstream path in pingora-proxy passed the downstream request through upstream_request_filter and wrote it to the upstream without removing the client's Connection header, other ho…

CVSS 3.1HIGH 8.7· Network · No auth · No interaction · EPSS 0.00425 · Published 2026-10-20 · Fixed in 0.9.0 CWE-444

TI-2026-76645 CVE-2026-105298 · GHSA-fqwv-pcm9-9m42

HTTP/2 Host and :authority mismatch in Pingora enables cache poisoning

Priority LOW 29

Summary Before version 0.9.0, Pingora accepted HTTP/2 requests whose Host header differed from the :authority pseudo-header.

CVSS 4.0MEDIUM 6.3· Network · No auth · No interaction · EPSS 0.00558 · Published 2026-10-20 · Fixed in 0.9.0 CWE-444

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