aetherpost (>=1.1.0, <=1.9.0), afterdark-llm-firewall (0.1.0) +156 more potentially affected by CVE-2026-84382 via httpx2 (>=2.2.0, <=2.10.0)

httpx2 PYPI version =2.2.0, =1.1.0, =0.1.5, =0.1.12, =1.3.155, =0.0.2, =0.2.0, =0.1.0, =0.1.1, =0.1.2, =0.8.3, =0.3.4, =0.1.0, =0.0.1, =0.1.8, =0.1.12 and more Source cves: CVE-2026-84382 Source advisory: OSV:PYSEC-2026-3846...

HTTPX2: Conflicting Content-Length and Transfer-Encoding headers can be auto-generated

SummaryHTTPX2 can automatically add a Content-Length header to a request that already contains a caller-supplied Transfer-Encoding header. The resulting HTTP/1.1 request contains both framing headers, which can create an ambiguous message boundary and enable request smuggling or connection...

HTTPX2: Multipart part header injection via unvalidated file Content-Type and custom headers

SummaryHTTPX2 serializes the per-file Content-Type and custom headers supplied through the files= tuple API directly into the multipart/form-data body without validating custom header names or values. An attacker who can influence upload metadata passed to HTTPX2 can use CR or LF characters to...

PYSEC-2026-3848 HTTPX2: Multipart part header injection via unvalidated file Content-Type and custom headers

Summary HTTPX2 serializes the per-file Content-Type and custom headers supplied through the files= tuple API directly into the multipart/form-data body without validating custom header names or values. An attacker who can influence upload metadata passed to HTTPX2 can use CR or LF characters to...

PYSEC-2026-3849 HTTPX2: Conflicting Content-Length and Transfer-Encoding headers can be auto-generated

Summary HTTPX2 can automatically add a Content-Length header to a request that already contains a caller-supplied Transfer-Encoding header. The resulting HTTP/1.1 request contains both framing headers, which can create an ambiguous message boundary and enable request smuggling or connection...

HTTPX2: Streaming response decompression does not bound peak memory (decompression amplification)

SummaryWhen decoding a compressed response body gzip, deflate, br, or zstd, HTTPX2 fully decompressed each network read before yielding content to the application. A small compressed input could therefore cause a large intermediate memory allocation, even when the application streamed the respons...

PYSEC-2026-3846 HTTPX2: Streaming response decompression does not bound peak memory (decompression amplification)

Summary When decoding a compressed response body gzip, deflate, br, or zstd, HTTPX2 fully decompressed each network read before yielding content to the application. A small compressed input could therefore cause a large intermediate memory allocation, even when the application streamed the respon...

bio-corgi (0.4.0), sepal-ui (>=2.10.1, <=2.10.2) potentially affected by CVE-2026-84380 via httpx2 (0.0.0)

httpx2 PYPI version 0.0.0 is affected by a known vulnerability. The following packages have a transitive dependency on httpx2 and may be impacted: - bio-corgi 0.4.0 - sepal-ui =2.10.1, =2.10.2 Source cves: CVE-2026-84380 Source advisory: OSV:PYSEC-2026-3849...

aetherpost (>=1.1.0, <=1.9.0), afterdark-llm-firewall (0.1.0) +113 more potentially affected by CVE-2026-84378 via httpx2 (>=2.5.0, <=2.9.1)

httpx2 PYPI version =2.5.0, =1.1.0, =0.1.5, =0.1.12, =1.3.155, =0.0.2, =0.2.0, =0.1.1, =0.1.2, =0.8.3, =0.3.4, =0.1.0, =0.0.1, =0.1.8, =0.1.12 - async-hermes-agent 0.20.4.1 and more Source cves: CVE-2026-84378 Source advisory: OSV:PYSEC-2026-3847...

aetherpost (>=1.1.0, <=1.9.0), afterdark-llm-firewall (0.1.0) +113 more potentially affected by CVE-2026-84381 via httpx2 (>=2.6.0, <=2.9.1)

httpx2 PYPI version =2.6.0, =1.1.0, =0.1.5, =0.1.12, =1.3.155, =0.0.2, =0.2.0, =0.1.1, =0.1.2, =0.8.3, =0.3.4, =0.1.0, =0.0.1, =0.1.8, =0.1.12 - async-hermes-agent 0.20.4.1 and more Source cves: CVE-2026-84381 Source advisory: OSV:PYSEC-2026-3845...

HTTPX2: Secure WebSocket traffic sent without TLS through SOCKS proxies

Summaryhttpcore2 does not start TLS for wss:// connections routed through a SOCKS5 proxy. The WebSocket opening handshake and all subsequent frames are sent in plaintext through the proxy path, despite the caller selecting the secure wss scheme.The transport flaw affects httpcore2 releases before...

PYSEC-2026-3844 HTTPX2: Secure WebSocket traffic sent without TLS through SOCKS proxies

Summary httpcore2 does not start TLS for wss:// connections routed through a SOCKS5 proxy. The WebSocket opening handshake and all subsequent frames are sent in plaintext through the proxy path, despite the caller selecting the secure wss scheme. The transport flaw affects httpcore2 releases befo...

HTTPX2: Quadratic SSE line buffering can cause CPU denial of service

SummaryHTTPX2's Server-Sent Events SSE parser repeatedly copied and rescanned buffered text when a server split one unterminated line across many response chunks. The total work grows quadratically with the length of the line. An attacker-controlled or compromised SSE endpoint can exploit this...

HTTPX2: Secure WebSocket traffic sent without TLS through SOCKS proxies

Summaryhttpcore2 does not start TLS for wss:// connections routed through a SOCKS5 proxy. The WebSocket opening handshake and all subsequent frames are sent in plaintext through the proxy path, despite the caller selecting the secure wss scheme.The transport flaw affects httpcore2 releases before...

PYSEC-2026-3847 HTTPX2: Quadratic SSE line buffering can cause CPU denial of service

Summary HTTPX2's Server-Sent Events SSE parser repeatedly copied and rescanned buffered text when a server split one unterminated line across many response chunks. The total work grows quadratically with the length of the line. An attacker-controlled or compromised SSE endpoint can exploit this...

PYSEC-2026-3845 HTTPX2: Secure WebSocket traffic sent without TLS through SOCKS proxies

Summary httpcore2 does not start TLS for wss:// connections routed through a SOCKS5 proxy. The WebSocket opening handshake and all subsequent frames are sent in plaintext through the proxy path, despite the caller selecting the secure wss scheme. The transport flaw affects httpcore2 releases befo...

EUVD-2026-70251

HTTPX2: Streaming response decompression does not bound peak memory decompression amplification...

aetherpost (>=1.1.0, <=1.9.0), afterdark-llm-firewall (0.1.0) +156 more potentially affected by CVE-2026-84382 via httpx2 (>=2.2.0, <=2.10.0)

httpx2 PYPI version =2.2.0, =1.1.0, =0.1.5, =0.1.12, =1.3.155, =0.0.2, =0.2.0, =0.1.0, =0.1.1, =0.1.2, =0.8.3, =0.3.4, =0.1.0, =0.0.1, =0.1.8, =0.1.12 and more Source cves: CVE-2026-84382 Source advisory: GHSA-8XX6-HGC6-GC2M...

aetherpost (>=1.1.0, <=1.9.0), afterdark-llm-firewall (0.1.0) +156 more potentially affected by CVE-2026-84382 via httpx2 (>=2.2.0, <=2.10.0)

httpx2 PYPI version =2.2.0, =1.1.0, =0.1.5, =0.1.12, =1.3.155, =0.0.2, =0.2.0, =0.1.0, =0.1.1, =0.1.2, =0.8.3, =0.3.4, =0.1.0, =0.0.1, =0.1.8, =0.1.12 and more Source cves: CVE-2026-84382 Source advisory: OSV:GHSA-8XX6-HGC6-GC2M...

aetherpost (>=1.1.0, <=1.9.0), afterdark-llm-firewall (0.1.0) +156 more potentially affected by CVE-2026-84382 via httpx2 (>=2.2.0, <=2.10.0)

httpx2 PYPI version =2.2.0, =1.1.0, =0.1.5, =0.1.12, =1.3.155, =0.0.2, =0.2.0, =0.1.0, =0.1.1, =0.1.2, =0.8.3, =0.3.4, =0.1.0, =0.0.1, =0.1.8, =0.1.12 and more Source cves: CVE-2026-84382 Source advisory: SNYK:PYTHON-HTTPX2-20361663...