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CVE-2026-15617

Logto performs principal lookup without normalizing email and identifier strings, enabling principal collision and unauthorized account access via case- or Unicode-different identities.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:748e0d2a4d45f61071f790fd577acd07693a05b3824323f12d6bf39d7716b649
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-178","description":"CWE-178 Improper Handling of Case Sensitivity","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:4c3bdd460ebd5187d7d1dae083e08d04830c088a2191b11e8c2266ca80e38a15 · sha256:1eb9484e224e32d8… · /containers/adp/0/problemTypes/0/descriptions/0

{"description":"CWE-178 Improper Handling of Case Sensitivity","lang":"en"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:4c3bdd460ebd5187d7d1dae083e08d04830c088a2191b11e8c2266ca80e38a15 · sha256:1eb9484e224e32d8… · /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":"1.10.1","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4c3bdd460ebd5187d7d1dae083e08d04830c088a2191b11e8c2266ca80e38a15 · sha256:1eb9484e224e32d8… · /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:v2:4c3bdd460ebd5187d7d1dae083e08d04830c088a2191b11e8c2266ca80e38a15 · sha256:1eb9484e224e32d8… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-178","description":"CWE-178 Improper Handling of Case Sensitivity","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:4c3bdd460ebd5187d7d1dae083e08d04830c088a2191b11e8c2266ca80e38a15 · sha256:1eb9484e224e32d8… · /containers/adp/0/problemTypes/0/descriptions/0
{"description":"CWE-178 Improper Handling of Case Sensitivity","lang":"en"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:4c3bdd460ebd5187d7d1dae083e08d04830c088a2191b11e8c2266ca80e38a15 · sha256:1eb9484e224e32d8… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"url":"https://github.com/logto-io/logto/blob/ea3ede35028dfd0bbb6d7b239623ce0e7f6cdff8/packages/core/src/libraries/verification-helpers/single-sign-on-guard.ts#L23-L33"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4c3bdd460ebd5187d7d1dae083e08d04830c088a2191b11e8c2266ca80e38a15 · sha256:1eb9484e224e32d8… · /containers/cna/references/0

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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