CVE-2026-40585 PUBLISHED

blueprintUE: Password Reset Tokens Have No Expiry Window

Assigner: GitHub_M
Reserved: 14.04.2026 Published: 21.04.2026 Updated: 21.04.2026

blueprintUE is a tool to help Unreal Engine developers. Prior to 4.2.0, when a password reset is initiated, a 128-character CSPRNG token is generated and stored alongside a password_reset_at timestamp. However, the token redemption function findUserIDFromEmailAndToken() queries only for a matching email + password_reset token pair — it does not check whether the password_reset_at timestamp has elapsed any maximum window. A generated reset token is valid indefinitely until it is explicitly consumed or overwritten by a subsequent reset request. This vulnerability is fixed in 4.2.0.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS Score: 7.4

Product Status

Vendor blueprintue
Product blueprintue-self-hosted-edition
Versions
  • Version < 4.2.0 is affected

References

Problem Types

  • CWE-640: Weak Password Recovery Mechanism for Forgotten Password CWE