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CVE-2026-71424

🗓️ 17 Aug 2026 21:28:32Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 60 Views

Onyx exposes another user's OAuth Authorization header via MCP servers API to any BASIC_ACCESS user before 3.1.10, 3.2.14, and 4.0.0.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-71424
17 Aug 202621:28
–attackerkb
circl
Circl
CVE-2026-71424
17 Aug 202623:00
–circl
cvelist
Cvelist
CVE-2026-71424 Onyx: Cross-user OAuth-token leak via /api/mcp/servers* for per-user MCP servers
17 Aug 202621:28
–cvelist
euvd
EUVD
EUVD-2026-60479
17 Aug 202621:28
–euvd
nvd
NVD
CVE-2026-71424
17 Aug 202622:17
–nvd
ptsecurity
Positive Technologies
PT-2026-76866
17 Aug 202600:00
–ptsecurity
rapid7
Rapid7 Vulnerability Database (full)
CVE-2026-71424: Exposure of Sensitive Information to an Unauthorized Actor
17 Aug 202600:00
–rapid7
Vulners
Node
OR
onyxonyx-dot-appRange<3.1.10
onyxonyx-dot-appRange3.2.0–3.2.14
[
  {
    "vendor": "onyx-dot-app",
    "product": "onyx",
    "versions": [
      {
        "version": "< 3.1.10",
        "status": "affected"
      },
      {
        "version": ">= 3.2.0, < 3.2.14",
        "status": "affected"
      },
      {
        "version": ">= 3.3.0-beta.0, < 4.0.0",
        "status": "affected"
      }
    ]
  }
]

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18 Sep 2026 20:09Current
5.3Medium risk
Vulners AI Score5.3
CVSS 3.19.6
EPSS0.00488
60