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FKIE_CVE-2026-34456

Vulnerability from fkie_nvd - Published: 2026-04-01 20:16 - Updated: 2026-06-17 10:39
Severity
9.1 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
Reviactyl is an open-source game server management panel built using Laravel, React, FilamentPHP, Vite, and Go. From version 26.2.0-beta.1 to before version 26.2.0-beta.5, a vulnerability in the OAuth authentication flow allowed automatic linking of social accounts based solely on matching email addresses. An attacker could create or control a social account (e.g., Google, GitHub, Discord) using a victim’s email address and gain full access to the victim's account without knowing their password. This results in a full account takeover with no prior authentication required. This issue has been patched in version 26.2.0-beta.5.
References
security-advisories@github.comhttps://github.com/reviactyl/panel/commit/fe0c29fc62fefe354c9ab8936dfe30fdb586a896Patch
security-advisories@github.comhttps://github.com/reviactyl/panel/releases/tag/v26.2.0-beta.5Product, Release Notes
security-advisories@github.comhttps://github.com/reviactyl/panel/security/advisories/GHSA-8mcf-rp68-xhfgMitigation, Patch, Vendor Advisory
Impacted products
Vendor Product Version
reviactyl reviactyl 26.2.0
reviactyl reviactyl 26.2.0
reviactyl reviactyl 26.2.0
reviactyl reviactyl 26.2.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "panel",
          "vendor": "reviactyl",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 26.2.0-beta.1, \u003c 26.2.0-beta.5"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:reviactyl:reviactyl:26.2.0:beta1:*:*:*:*:*:*",
              "matchCriteriaId": "F8D3FEB3-9EB8-4856-8B4B-C729D5DC1DC4",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:reviactyl:reviactyl:26.2.0:beta2:*:*:*:*:*:*",
              "matchCriteriaId": "E82FD16F-ED7D-4C6C-A039-F3A4F418BCFC",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:reviactyl:reviactyl:26.2.0:beta3:*:*:*:*:*:*",
              "matchCriteriaId": "D2FE3906-FD27-43A5-8012-7A61FC395D3A",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "C12D8410-5633-4819-9EAF-B7A08351F540",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Reviactyl is an open-source game server management panel built using Laravel, React, FilamentPHP, Vite, and Go. From version 26.2.0-beta.1 to before version 26.2.0-beta.5, a vulnerability in the OAuth authentication flow allowed automatic linking of social accounts based solely on matching email addresses. An attacker could create or control a social account (e.g., Google, GitHub, Discord) using a victim\u2019s email address and gain full access to the victim\u0027s account without knowing their password. This results in a full account takeover with no prior authentication required. This issue has been patched in version 26.2.0-beta.5."
    }
  ],
  "id": "CVE-2026-34456",
  "lastModified": "2026-06-17T10:39:04.920",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 9.1,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
          "version": "3.1"
        },
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        "impactScore": 5.2,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-34456",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-04-02T14:16:51.333124Z",
          "version": "2.0.3"
        }
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  },
  "published": "2026-04-01T20:16:26.120",
  "references": [
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      "tags": [
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    },
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      "tags": [
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    },
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      "tags": [
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      "url": "https://github.com/reviactyl/panel/security/advisories/GHSA-8mcf-rp68-xhfg"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
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          "value": "CWE-284"
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      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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