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CVE-2026-55789: logto < 1.41.0
CVE-2026-55789. CVSS 3.1 base score 8.5 (HIGH, Vendor/CNA). EPSS 0.00402 (percentile 0.33341), scored 24-Oct-2026.
Affected technology
logto · < 1.41.0
logto-io
Component: Not specified by the source
Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · Low privileges required · No user interaction required
What an attacker can do
An authenticated low-privilege user could place XML markup in a profile attribute so Logto signed a forged SAML attribute, such as an arbitrary role, allowing privilege escalation at relying Service Providers that authorize on SAML attributes. Vendor/CNA’s CVSS 3.1 assessment (base score 8.5/10) rates confidentiality impact as low; integrity impact as high; availability impact as none.
- CWE
- CWE-91
- CCR priority
- 34.1 /100 (P4)
- CVSS 3.1
- 8.5 /10 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N · Vendor/CNA
- EPSS
- 0.00402 · percentile 0.34172 · 2026-10-25
- KEV
- no
Provenance
- FIRST EPSS daily exploit-probability · Source record · observed 2026-10-25 19:52:47.952465+00:00 UTC
- NVD CVE API 2.0 · Source record · observed 2026-10-25 19:51:06.643138+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-55789.html