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EUVD-2026-16769

🗓️ 27 Mar 2026 19:29:25Reported by EUVDType 
euvd
 euvd
🔗 euvd.enisa.europa.eu👁 3 Views

LibreChat OAuth token exfiltration via malicious MCP headers; fixed in version 0.8.3-rc2.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-31951
27 Mar 202619:29
attackerkb
CNNVD
LibreChat 信息泄露漏洞
27 Mar 202600:00
cnnvd
CVE
CVE-2026-31951
27 Mar 202619:29
cve
Cvelist
CVE-2026-31951 LibreChat's MCP Server Header Injection Enables OAuth Token Theft
27 Mar 202619:29
cvelist
NVD
CVE-2026-31951
27 Mar 202620:16
nvd
OSV
CVE-2026-31951 LibreChat's MCP Server Header Injection Enables OAuth Token Theft
27 Mar 202619:29
osv
Positive Technologies
PT-2026-28432
27 Mar 202600:00
ptsecurity
RedhatCVE
CVE-2026-31951
28 Mar 202623:09
redhatcve
Vulnrichment
CVE-2026-31951 LibreChat's MCP Server Header Injection Enables OAuth Token Theft
27 Mar 202619:29
vulnrichment
[
  {
    "enisaIdVendor": [
      {
        "id": "4d87fe7d-df9c-3b1a-81b9-7521eb1a6086",
        "vendor": {
          "name": "danny-avila"
        }
      }
    ],
    "enisaIdProduct": [
      {
        "id": "cfc7ad81-69f2-39bf-8115-b178ffbccb00",
        "product": {
          "name": "LibreChat"
        },
        "product_version": "v0.8.2-rc1, ≤ v0.8.3-rc1"
      }
    ]
  }
]

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27 Mar 2026 19:29Current
6Medium risk
Vulners AI Score6
CVSS 3.16.8
EPSS0.00244
3