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TI-2026-79724 Aliases CVE-2026-107685GHSA-w53j-6pxf-r2vw

Missing TLS certificate checks in req_llm WebSocket sessions

Priority HIGH 74CWE-295Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
Present
Impact type
Spoofing
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-295.

Summary

agentjido req_llm from 1.9.0 before 1.29.0 fails to verify TLS certificates in its WebSocket streaming client (CWE-295). Callers cannot enable verification through supplied options. An on-path attacker who presents an untrusted certificate can read and modify OpenAI WebSocket sessions, including the authorization bearer token. HTTP streaming and the HTTP/2 duplex session verify certificates and are not affected.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

Improper Certificate Validation vulnerability in the WebSocket streaming client in agentjido req_llm allows an on-path attacker to read and modify OpenAI WebSocket sessions, including the authorization bearer token, via a TLS certificate the client does not trust. ReqLLM.Streaming.WebSocketSession.Client.start/3 in lib/req_llm/streaming/web_socket_session/client.ex starts WebSockex without TLS options, and WebSockex defaults to insecure: true, which connects with verify: :verify_none. The option allowlist also drops any caller-supplied cacerts or ssl_options, so an application cannot turn verification on. The OpenAI Responses, Realtime, and Codex WebSocket paths reach this client and send the API key or OAuth access token in the authorization header. HTTP streaming through Finch and the HTTP/2 duplex session through Mint verify certificates and are not affected. This issue affects req_llm: from 1.9.0 before 1.29.0.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00273 19th percentileScored 2026-11-07
Fix Fixed req_llm (agentjido): 1.29.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
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
agentjidoreq_llm1.9.0 to before 1.29.01.29.0Patch availableCNA
  • req_llm Vendoragentjido Affected 1.9.0 to before 1.29.0 Fixed in 1.29.0 Patch available CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:agentjido:req_llm:*:*:*:*:*:*:*:*——agentjido
  • cpe:2.3:a:agentjido:req_llm:*:*:*:*:*:*:*:* Versions — — ·agentjido

Remediation

The fixed version for agentjido req_llm is 1.29.0. Upgrade req_llm to 1.29.0 or later.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

  • Fix · CNA req_llm (agentjido) Fixed in 1.29.0

Timeline

  1. 2026-10-23 Threatist record created from CVE-2026-107685
  2. 2026-10-23 Alias added: GHSA-w53j-6pxf-r2vw
  3. 2026-10-24 Priority changed: MEDIUM → LOW
  4. 2026-11-02 CISA SSVC decision points changed
  5. 2026-11-02 Priority changed: LOW → HIGH

References

Patch 1

Advisory 1

Other 3

Sources

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