CVE-2026-15612 (GCVE-0-2026-15612)

Vulnerability from cvelistv5 – Published: 2026-07-23 15:45 – Updated: 2026-07-23 15:45
VLAI
Title
LOIDC nonce validation bypass
Summary
Logto bypasses OIDC nonce validation when the nonce claim is absent from the id_token, enabling replay of authentication tokens and weakening session-binding.
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
Logto Logto Affected: 1.10.1 , ≤ 1.37.1 (custom)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "Logto",
          "vendor": "Logto",
          "versions": [
            {
              "lessThanOrEqual": "1.37.1",
              "status": "affected",
              "version": "1.10.1",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Logto bypasses OIDC nonce validation when the nonce claim is absent from the id_token, enabling replay of authentication tokens and weakening session-binding."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-345 Insufficient Verification of Data Authenticity",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-23T15:45:27.100Z",
        "orgId": "37e5125f-f79b-445b-8fad-9564f167944b",
        "shortName": "certcc"
      },
      "references": [
        {
          "url": "https://github.com/logto-io/logto/blob/ea3ede35028dfd0bbb6d7b239623ce0e7f6cdff8/packages/core/src/sso/OidcConnector/utils.ts#L175-L182"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "LOIDC nonce validation bypass",
      "x_generator": {
        "engine": "VINCE 3.0.43",
        "env": "prod",
        "origin": "https://cveawg.mitre.org/api/cve/CVE-2026-15612"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b",
    "assignerShortName": "certcc",
    "cveId": "CVE-2026-15612",
    "datePublished": "2026-07-23T15:45:27.100Z",
    "dateReserved": "2026-07-13T16:12:30.539Z",
    "dateUpdated": "2026-07-23T15:45:27.100Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-15612",
      "date": "2026-07-24",
      "epss": "0.00128",
      "percentile": "0.02803"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-15612\",\"sourceIdentifier\":\"cret@cert.org\",\"published\":\"2026-07-23T16:17:14.047\",\"lastModified\":\"2026-07-23T16:19:32.270\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Logto bypasses OIDC nonce validation when the nonce claim is absent from the id_token, enabling replay of authentication tokens and weakening session-binding.\"}],\"affected\":[{\"source\":\"cret@cert.org\",\"affectedData\":[{\"vendor\":\"Logto\",\"product\":\"Logto\",\"versions\":[{\"version\":\"1.10.1\",\"lessThanOrEqual\":\"1.37.1\",\"versionType\":\"custom\",\"status\":\"affected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://github.com/logto-io/logto/blob/ea3ede35028dfd0bbb6d7b239623ce0e7f6cdff8/packages/core/src/sso/OidcConnector/utils.ts#L175-L182\",\"source\":\"cret@cert.org\"}]}}"
  }
}



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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.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.