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TI-2026-57992 Aliases CVE-2026-84381GHSA-7mj9-2mp8-4m2p

HTTPX2: Secure WebSocket traffic sent without TLS through SOCKS proxies

Priority LOW 36CWE-319Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · High · None
Fix status
Partial Red Hat: 2 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-319.

Summary

HTTPX2 is a next generation HTTP client for Python. Prior to 2.10.0, httpcore2 fails to start TLS in src/httpcore2/httpcore2/_sync/socks_proxy.py and src/httpcore2/httpcore2/_async/socks_proxy.py when the remote origin uses wss through a SOCKS5 proxy because the TLS upgrade condition only recognizes https. HTTPX2 exposes the flaw through Client.websocket() and AsyncClient.websocket() from 2.6.0 through 2.9.1, so the opening handshake, query parameters, Authorization headers, cookies, and subsequent frames can cross the proxy path in plaintext without certificate verification. An attacker controlling or observing that path can read or modify traffic and impersonate the WebSocket server. This issue is fixed in httpcore2 2.10.0 and HTTPX2 2.10.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00079 0th percentileScored 2026-11-07
Fix Partial httpx2 (pydantic): 2.10.0httpcore2 (pydantic): 2.10.0+2 more productsRed Hat: 3 advisoriesRed Hat: 2 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
pydantichttpx22.6.0 to before 2.10.02.10.0Patch availableCNA
pydantichttpcore2before 2.10.02.10.0Patch availableCNA
—httpcore2 (PyPI)before 2.10.02.10.0Patch availableGHSA-7mj9-2mp8-4m2p
—httpx2 (PyPI)2.6.0 to before 2.10.02.10.0Patch availableGHSA-7mj9-2mp8-4m2p
  • httpx2 Vendorpydantic Affected 2.6.0 to before 2.10.0 Fixed in 2.10.0 Patch available CNA
  • httpcore2 Vendorpydantic Affected before 2.10.0 Fixed in 2.10.0 Patch available CNA
  • httpcore2 (PyPI) Vendor— Affected before 2.10.0 Fixed in 2.10.0 Patch available GHSA-7mj9-2mp8-4m2p
  • httpx2 (PyPI) Vendor— Affected 2.6.0 to before 2.10.0 Fixed in 2.10.0 Patch available GHSA-7mj9-2mp8-4m2p

Remediation

  • Fix · CNA httpx2 (pydantic) Fixed in 2.10.0
  • Fix · CNA httpcore2 (pydantic) Fixed in 2.10.0
  • Fix · GHSA-7mj9-2mp8-4m2p httpcore2 (PyPI) Fixed in 2.10.0 Advisory →
  • Fix · GHSA-7mj9-2mp8-4m2p httpx2 (PyPI) Fixed in 2.10.0 Advisory →

Red Hat 3 advisories

  • RHSA-2026:86891 Released 2026-10-21 · Red Hat rating Critical
    RHOAI 3.5.2 - Red Hat OpenShift AI
    • Red Hat OpenShift AI 3.5 registry.redhat.io/rhoai/odh-automl-rhel9, registry.redhat.io/rhoai/odh-built-in-detector-rhel9, registry.redhat.io/rhoai/odh-cli-rhel9 +47
  • RHSA-2026:82371 Released 2026-10-13 · Red Hat rating Critical
    Red Hat AI Inference 3.5.2 (spyre)
    • Red Hat AI Inference Server 3.5 registry.redhat.io/rhaii/vllm-spyre-rhel9
  • RHSA-2026:82061 Released 2026-10-13 · Red Hat rating Critical
    Red Hat AI Inference Tech Preview 3.5.2 (Gaudi)
    • Red Hat AI Inference Server 3.5 registry.redhat.io/rhaii/vllm-gaudi-rhel9

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Lightspeed CoreAffectedNo fix yet
Red Hat AI Inference Server 3.5Fixed RHSA-2026:82061, RHSA-2026:82371
Red Hat OpenShift AI 3.5Fixed RHSA-2026:86891
Not affected: 6 products
  • Exploit Intelligence
  • Migration Toolkit for Applications 8
  • OpenShift Lightspeed
  • Red Hat Enterprise Linux command line assistant
  • Red Hat OpenShift AI (RHOAI)
  • Red Hat OpenShift AI 3.5

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-84381
  2. 2026-10-03 Alias added: GHSA-7mj9-2mp8-4m2p
  3. 2026-10-13 Fix available: RHSA-2026:82061 · Red Hat
  4. 2026-10-13 Fix available: Red Hat AI Inference Server 3.5 · Red Hat
  5. 2026-10-14 Fix available: RHSA-2026:82371 · Red Hat
  6. 2026-10-15 Affected versions changed · Red Hat
  7. 2026-10-21 Affected versions changed · Red Hat
  8. 2026-10-22 Fix available: RHSA-2026:86891 · Red Hat
  9. 2026-10-22 Fix available: Red Hat OpenShift AI 3.5 · Red Hat

References

Advisory 1

Other 5

  • TI-2024-03518 Regular expression denial of service in Pydantic < 2.4.0 CVSS 3.1HIGH 7.5
  • TI-2026-57990 HTTPX2: Multipart part header injection via unvalidated file Content-Type and custom headers CVSS 3.1MEDIUM 5.3
  • TI-2026-41916 Path traversal in pydantic-settings CVSS 3.1MEDIUM 5.3
  • TI-2026-20687 Pydantic AI Affected by Server-Side Request Forgery (SSRF) in URL Download Handling CVSS 3.1HIGH 8.6
  • TI-2026-57993 HTTPX2: Streaming response decompression does not bound peak memory (decompression amplification) CVSS 3.1HIGH 7.5
  • TI-2026-69551 Pydantic AI keeps concurrency slots after streams end early CVSS 3.1HIGH 7.5
See all 24 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences