CVE-2026-15615 (GCVE-0-2026-15615)

Vulnerability from cvelistv5 – Published: 2026-07-23 15:43 – Updated: 2026-07-23 15:43
VLAI
Title
SAML <Conditions> element not validated
Summary
Logto omits validation of the SAML <Conditions> element, enabling attackers to strip time and audience restrictions and replay assertions indefinitely.
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
Logto Logto Affected: 1.12.0 , ≤ 1.37.1 (custom)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "Logto",
          "vendor": "Logto",
          "versions": [
            {
              "lessThanOrEqual": "1.37.1",
              "status": "affected",
              "version": "1.12.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Logto omits validation of the SAML \u003cConditions\u003e element, enabling attackers to strip time and audience restrictions and replay assertions indefinitely."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-345 Insufficient Verification of Data Authenticity",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-23T15:43:42.802Z",
        "orgId": "37e5125f-f79b-445b-8fad-9564f167944b",
        "shortName": "certcc"
      },
      "references": [
        {
          "url": "https://github.com/logto-io/logto/blob/ea3ede35028dfd0bbb6d7b239623ce0e7f6cdff8/packages/core/src/sso/SamlConnector/utils.ts#L175-L205"
        },
        {
          "url": "https://github.com/logto-io/logto/blob/ea3ede35028dfd0bbb6d7b239623ce0e7f6cdff8/packages/connectors/connector-saml/src/utils.ts#L46-L110"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "SAML \u003cConditions\u003e element not validated",
      "x_generator": {
        "engine": "VINCE 3.0.43",
        "env": "prod",
        "origin": "https://cveawg.mitre.org/api/cve/CVE-2026-15615"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b",
    "assignerShortName": "certcc",
    "cveId": "CVE-2026-15615",
    "datePublished": "2026-07-23T15:43:42.802Z",
    "dateReserved": "2026-07-13T16:14:15.128Z",
    "dateUpdated": "2026-07-23T15:43:42.802Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-15615",
      "date": "2026-07-24",
      "epss": "0.00134",
      "percentile": "0.03309"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-15615\",\"sourceIdentifier\":\"cret@cert.org\",\"published\":\"2026-07-23T16:17:14.237\",\"lastModified\":\"2026-07-23T16:19:32.270\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Logto omits validation of the SAML \u003cConditions\u003e element, enabling attackers to strip time and audience restrictions and replay assertions indefinitely.\"}],\"affected\":[{\"source\":\"cret@cert.org\",\"affectedData\":[{\"vendor\":\"Logto\",\"product\":\"Logto\",\"versions\":[{\"version\":\"1.12.0\",\"lessThanOrEqual\":\"1.37.1\",\"versionType\":\"custom\",\"status\":\"affected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://github.com/logto-io/logto/blob/ea3ede35028dfd0bbb6d7b239623ce0e7f6cdff8/packages/connectors/connector-saml/src/utils.ts#L46-L110\",\"source\":\"cret@cert.org\"},{\"url\":\"https://github.com/logto-io/logto/blob/ea3ede35028dfd0bbb6d7b239623ce0e7f6cdff8/packages/core/src/sso/SamlConnector/utils.ts#L175-L205\",\"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.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.