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CVE-2026-82263

Status: DeferredHigh (8.2)—

Logto through 1.42.0 contains a server-side request forgery vulnerability in the OIDC SSO connector creation endpoint that fails to validate the issuer URL parameter. Tenant administrators with Management API credentials can supply arbitrary internal URLs to trigger HTTP GET requests to private network services, with response content returned in API responses.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

SSRF en endpoint de OIDC requiere PR:H (credenciales de administrador) con acceso en red (AV:N). Respuestas retornadas exponen datos internos de servicios privados.

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

🛡️ ATT&CK mitigations that cover these techniques

Vulnerability ScanningThreat Intelligence ProgramSSL/TLS InspectionPrivileged Account ManagementNetwork SegmentationNetwork Intrusion Prevention

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Logto — LogtoAI

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2026-82263",
  "cveTags": [],
  "metrics": {
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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          "id": "CVE-2026-82263",
          "role": "CISA Coordinator",
          "options": [
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            {
              "automatable": "no"
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          "version": "2.0.3",
          "timestamp": "2026-08-28T20:23:06.328291Z"
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N",
          "integrityImpact": "NONE",
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          "vulnerabilityResponseEffort": "NOT_DEFINED",
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          "versions": [
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    {
      "url": "https://github.com/logto-io/logto/blob/v1.42.0/packages/core/src/sso/OidcConnector/utils.ts",
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      "lang": "en",
      "value": "Logto through 1.42.0 contains a server-side request forgery vulnerability in the OIDC SSO connector creation endpoint that fails to validate the issuer URL parameter. Tenant administrators with Management API credentials can supply arbitrary internal URLs to trigger HTTP GET requests to private network services, with response content returned in API responses."
    }
  ],
  "lastModified": "2026-09-08T20:23:49.880",
  "sourceIdentifier": "disclosure@vulncheck.com"
}