Vulnerability · Published Apr 21, 2026 · Assigned by GitHub_M
CVE-2026-40585blueprintUE: Password Reset Tokens Have No Expiry Window
High 7.4
In plain English
A high-severity security flaw in blueprintue-self-hosted-edition from blueprintue. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities).
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| blueprintue | blueprintue-self-hosted-edition | < 4.2.0 |
Weakness: CWE-640 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N