CVE-2026-15617

Principal/domain lookup without case normalization

Critical · published July 23, 2026

CVSS v3.1
9.1
EPSS
0%
Percentile
35.9
In the wild
Unconfirmed
What it is

Logto performs principal lookup without normalizing email and identifier strings, enabling principal collision and unauthorized account access via case- or Unicode-different identities.

The record
Technical detail
CVSS v3.1
9.1 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00427 · 35.9th percentile
Published
2026-07-23T15:41Z
EPSS history
Timeline
  • 23 JUL 15:41Z
    Principal/domain lookup without case normalization
    cvelistv5