What is CVE-2026-15615?

CVE-2026-15615 is a high-severity vulnerability in Logto, classified under Insufficient Verification of Data Authenticity. CVSS score: 7.5/10. Published 2026-07-23.

How severe is CVE-2026-15615?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Logto

CVE-2026-15615

Logto omits validation of the SAML <Conditions> element, enabling attackers to strip time and audience restrictions and replay assertions indefinitely.

EPSS: 0.002 (7.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Logto — versions 1.12.0

Weakness classification (CWE)

CWE-345 — Insufficient Verification of Data Authenticity

References

cret@cert.org
cret@cert.org

Frequently asked questions

What is CVE-2026-15615?: CVE-2026-15615 is a high-severity vulnerability in Logto, classified under Insufficient Verification of Data Authenticity. CVSS score: 7.5/10. Published 2026-07-23.
How severe is CVE-2026-15615?: High severity. CVSS v3 base score is 7.5 out of 10.