Pydantic httpx2

• CVE-2026-84382 High 7.5 HTTPX2: Streaming response decompression does not bound peak memory (decompression amplification) 0.6%
• CVE-2026-84381 High 8.1 HTTPX2: Secure WebSocket traffic sent without TLS through SOCKS proxies <0.1%
• CVE-2026-84380 Medium 5.6 HTTPX2: Conflicting Content-Length and Transfer-Encoding headers can be auto-generated 0.2%
• CVE-2026-84379 Medium 5.3 HTTPX2: Multipart part header injection via unvalidated file Content-Type and custom headers 0.3%
• CVE-2026-84378 Medium 5.9 HTTPX2: Quadratic SSE line buffering can cause CPU denial of service 0.3%