CVE-2026-40587 — blueprintUE is a tool to help Unreal Engine developers.
CVE-2026-40587 — blueprintUE is a tool to help Unreal Engine developers. Prior to 4.2.0, when a user changes their password via the profile edit page, or when a password reset is completed via the reset link, neither operation invalidates existing authenticated sessions for that user. A server-side
What This Means For You
- If your environment is affected by CWE-613, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-40587 updates and patches.
Related ATT&CK Techniques
🛡️ Detection Rules
2 rules · 6 SIEM formats2 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.
CVE-2026-40587 - Persistent Session Access After Password Change
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-40587 | vulnerability | CVE-2026-40587 |
| CWE-613 | weakness | CWE-613 |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | April 21, 2026 at 21:16 UTC |
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