FKIE_CVE-2026-55672

Vulnerability from fkie_nvd - Published: 2026-07-10 18:16 - Updated: 2026-07-10 19:17
Severity
7.4 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Summary
ZITADEL is an open source identity management platform. Prior to 3.4.12 and 4.15.2, ZITADEL's OAuth2 and OIDC CodeExchange, RefreshToken, and device token flows fail to verify that the requesting client matches the client that initiated the authorization flow, allowing intercepted grants or refresh tokens to be exchanged under a different client. This issue is fixed in versions 3.4.12 and 4.15.2.
References
security-advisories@github.comhttps://github.com/zitadel/zitadel/commit/562403079a98cf2059cdac11865a45e2f285be71
security-advisories@github.comhttps://github.com/zitadel/zitadel/commit/5b1708e0e650398f0ebc3341714f0798b0118917
security-advisories@github.comhttps://github.com/zitadel/zitadel/releases/tag/v3.4.12
security-advisories@github.comhttps://github.com/zitadel/zitadel/releases/tag/v4.15.2
security-advisories@github.comhttps://github.com/zitadel/zitadel/security/advisories/GHSA-xqxv-4jc2-x56x
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "zitadel",
          "vendor": "zitadel",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 4.0.0-rc.1, \u003c 4.15.2"
            },
            {
              "status": "affected",
              "version": "\u003c 3.4.12"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "ZITADEL is an open source identity management platform. Prior to 3.4.12 and 4.15.2, ZITADEL\u0027s OAuth2 and OIDC CodeExchange, RefreshToken, and device token flows fail to verify that the requesting client matches the client that initiated the authorization flow, allowing intercepted grants or refresh tokens to be exchanged under a different client. This issue is fixed in versions 3.4.12 and 4.15.2."
    }
  ],
  "id": "CVE-2026-55672",
  "lastModified": "2026-07-10T19:17:25.983",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.4,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 5.2,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-55672",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-10T18:38:05.489144Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-10T18:16:23.637",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/zitadel/zitadel/commit/562403079a98cf2059cdac11865a45e2f285be71"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/zitadel/zitadel/commit/5b1708e0e650398f0ebc3341714f0798b0118917"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/zitadel/zitadel/releases/tag/v3.4.12"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/zitadel/zitadel/releases/tag/v4.15.2"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/zitadel/zitadel/security/advisories/GHSA-xqxv-4jc2-x56x"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-287"
        },
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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