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CVE-2026-15611

Logto allows unverified email-based SSO account linking, enabling an attacker to register an identity at a permissive IdP using a victim’s email and gain unauthorized access to the victim’s account.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:7ed346c8ce201145c9cf8068eb14de44973660589531ec3a259b6303de59bf27
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-287","description":"CWE-287 Improper Authentication","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:e905f4395e4631b0b648d176423ac1004dbceb0ef3e173b7b637d0af75036314 · sha256:0a96787b61ce543d… · /containers/adp/0/problemTypes/0/descriptions/0

{"description":"CWE-287 Improper Authentication","lang":"en"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:e905f4395e4631b0b648d176423ac1004dbceb0ef3e173b7b637d0af75036314 · sha256:0a96787b61ce543d… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"Logto","vendor":"Logto","versions":[{"lessThanOrEqual":"1.37.1","status":"affected","version":"1.11.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e905f4395e4631b0b648d176423ac1004dbceb0ef3e173b7b637d0af75036314 · sha256:0a96787b61ce543d… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"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"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:e905f4395e4631b0b648d176423ac1004dbceb0ef3e173b7b637d0af75036314 · sha256:0a96787b61ce543d… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-287","description":"CWE-287 Improper Authentication","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:e905f4395e4631b0b648d176423ac1004dbceb0ef3e173b7b637d0af75036314 · sha256:0a96787b61ce543d… · /containers/adp/0/problemTypes/0/descriptions/0
{"description":"CWE-287 Improper Authentication","lang":"en"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:e905f4395e4631b0b648d176423ac1004dbceb0ef3e173b7b637d0af75036314 · sha256:0a96787b61ce543d… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"url":"https://github.com/logto-io/logto/blob/ea3ede35028dfd0bbb6d7b239623ce0e7f6cdff8/packages/core/src/libraries/verification-helpers/single-sign-on.ts#L274"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e905f4395e4631b0b648d176423ac1004dbceb0ef3e173b7b637d0af75036314 · sha256:0a96787b61ce543d… · /containers/cna/references/0
{"url":"https://github.com/logto-io/logto/blob/ea3ede35028dfd0bbb6d7b239623ce0e7f6cdff8/packages/core/src/routes/experience/classes/verifications/enterprise-sso-verification.ts#L284-L297"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e905f4395e4631b0b648d176423ac1004dbceb0ef3e173b7b637d0af75036314 · sha256:0a96787b61ce543d… · /containers/cna/references/1

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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