Medium severity6.5NVD Advisory· Published Sep 4, 2026
CVE-2026-85700
CVE-2026-85700
Description
Onyx 4.6.6 fails to properly restrict access to custom tool credentials stored in custom_headers, allowing any authenticated user to read admin-defined API keys. Attackers with basic authentication can call GET /tool/{tool_id} or GET /tool endpoints to retrieve plaintext authorization headers and third-party API credentials, then use them to directly access upstream APIs.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1- Range: =4.6.6
Patches
Vulnerability mechanics
References
4- github.com/onyx-dot-app/onyx/blob/v4.6.6/backend/onyx/server/features/tool/api.pynvd
- github.com/onyx-dot-app/onyx/blob/v4.6.6/backend/onyx/server/features/tool/models.pynvd
- github.com/onyx-dot-app/onyx/issues/13165nvd
- www.vulncheck.com/advisories/onyx-4.6.6-custom-tool-secret-header-disclosure-via-tool-endpointsnvd
News mentions
0No linked articles in our index yet.