SEPTEMBER 17, 2026
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Case File

CVE-2026-15612

CRITICAL · CVSS 9.1 EPSS 0.18% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-23 · Last synced 2026-08-22

CyberRota Analysis

AI-Generated

Logto is vulnerable due to its failure to validate the nonce claim in the id_token when absent, allowing attackers to replay authentication tokens and compromise session integrity. This critical flaw poses significant risks to any application relying on OIDC for authentication, particularly those handling sensitive user data. Organizations utilizing Logto for authentication should prioritize immediate remediation to mitigate potential unauthorized access and session hijacking.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-15612
Severity
CRITICAL
CVSS
9.1
EPSS
0.18%

Original NVD Description

Logto bypasses OIDC nonce validation when the nonce claim is absent from the id_token, enabling replay of authentication tokens and weakening session-binding.