Threats Tagged 'cve-2026-105299'
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Threats Tagged 'cve-2026-105299'
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CVE-2026-105299 is a vulnerability in Cloudflare's pingora proxy before version 0.9.0 where the HTTP/1 upstream path fails to remove the client's Connection header and related hop-by-hop headers as required by RFC 9110. This allows a remote unauthenticated attacker to cause removal of headers added by Pingora, such as X-Forwarded-For, by a downstream HTTP/1 intermediary that honors Connection nominations. This can lead to bypassing IP-based authorization on the origin server. Cloudflare CDN customers are unaffected. The issue is fixed in pingora version 0.9.0 and later. Join the discussion | CVE Database V5 | 10/20/2026, 01:07:12 UTC Added: 10/20/2026, 01:34:17 UTC |
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