CVE-2026-103019 (GCVE-0-2026-103019)

Vulnerability from cvelistv5 – Published: 2026-11-05 20:04 – Updated: 2026-11-05 20:04
VLAI
Title
OpenEMR: Unauthenticated Open Redirect via OIDC End Session Endpoint
Summary
OpenEMR is a free and open source electronic health records and medical practice management application. Prior to 8.3.0, userSessionLogout() in src/RestControllers/AuthorizationController.php uses decodeToken() to process an id_token_hint without verifying its signature and, when the referenced trusted session is absent, redirects to the caller-supplied post_logout_redirect_uri before validating it against the client's registered redirect URIs. An unauthenticated attacker can craft a logout link that sends a user to an arbitrary external site and invalidates the user's session, enabling convincing phishing flows from the legitimate logout endpoint. The endpoint is reachable when the OpenEMR REST API is enabled. This issue is fixed in version 8.3.0.
Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
CWE
  • CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 8026 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
openemr openemr Affected: < 8.3.0
guessed Create a notification for this product.
Show details on NVD website
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          "value": "OpenEMR is a free and open source electronic health records and medical practice management application. Prior to 8.3.0, userSessionLogout() in src/RestControllers/AuthorizationController.php uses decodeToken() to process an id_token_hint without verifying its signature and, when the referenced trusted session is absent, redirects to the caller-supplied post_logout_redirect_uri before validating it against the client\u0027s registered redirect URIs. An unauthenticated attacker can craft a logout link that sends a user to an arbitrary external site and invalidates the user\u0027s session, enabling convincing phishing flows from the legitimate logout endpoint. The endpoint is reachable when the OpenEMR REST API is enabled. This issue is fixed in version 8.3.0."
        }
      ],
      "metrics": [
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            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
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            "version": "3.1"
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      "problemTypes": [
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          "descriptions": [
            {
              "cweId": "CWE-601",
              "description": "CWE-601: URL Redirection to Untrusted Site (\u0027Open Redirect\u0027)",
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      "providerMetadata": {
        "dateUpdated": "2026-11-05T20:04:25.657Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
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          "tags": [
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          "url": "https://github.com/openemr/openemr/security/advisories/GHSA-5h9g-m7q2-pv45"
        },
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          "tags": [
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        },
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          "name": "https://github.com/openemr/openemr/releases/tag/v8_3_0",
          "tags": [
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          "url": "https://github.com/openemr/openemr/releases/tag/v8_3_0"
        }
      ],
      "source": {
        "advisory": "GHSA-5h9g-m7q2-pv45",
        "discovery": "UNKNOWN"
      },
      "title": "OpenEMR: Unauthenticated Open Redirect via OIDC End Session Endpoint"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-103019",
    "datePublished": "2026-11-05T20:04:25.657Z",
    "dateReserved": "2026-09-29T21:13:24.031Z",
    "dateUpdated": "2026-11-05T20:04:25.657Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2",
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                "vendor": "openemr",
                "versions": [
                  {
                    "status": "affected",
                    "version": "\u003c 8.3.0"
                  }
                ]
              }
            ],
            "source": "security-advisories@github.com"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "OpenEMR is a free and open source electronic health records and medical practice management application. Prior to 8.3.0, userSessionLogout() in src/RestControllers/AuthorizationController.php uses decodeToken() to process an id_token_hint without verifying its signature and, when the referenced trusted session is absent, redirects to the caller-supplied post_logout_redirect_uri before validating it against the client\u0027s registered redirect URIs. An unauthenticated attacker can craft a logout link that sends a user to an arbitrary external site and invalidates the user\u0027s session, enabling convincing phishing flows from the legitimate logout endpoint. The endpoint is reachable when the OpenEMR REST API is enabled. This issue is fixed in version 8.3.0."
          }
        ],
        "id": "CVE-2026-103019",
        "lastModified": "2026-11-05T20:17:37.717",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
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        "references": [
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            "source": "security-advisories@github.com",
            "url": "https://github.com/openemr/openemr/commit/50f789fad45ada625fe8d0faf0c7a9c15ef52aa5"
          },
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            "source": "security-advisories@github.com",
            "url": "https://github.com/openemr/openemr/pull/13133"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/openemr/openemr/releases/tag/v8_3_0"
          },
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            "url": "https://github.com/openemr/openemr/security/advisories/GHSA-5h9g-m7q2-pv45"
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        "vulnStatus": "Received",
        "weaknesses": [
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                "value": "CWE-601"
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            "source": "security-advisories@github.com",
            "type": "Primary"
          }
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      }
    }
  }
}



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