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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.

PUBLISHED Reserved 2026-04-14 | Published 2026-04-21 | Updated 2026-04-21 | Assigner GitHub_M




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

Problem types

CWE-640: Weak Password Recovery Mechanism for Forgotten Password

Product status

< 4.2.0
affected

References

github.com/...dition/security/advisories/GHSA-qr65-6vp8-whjf exploit

github.com/...dition/security/advisories/GHSA-qr65-6vp8-whjf

cve.org (CVE-2026-40585)

nvd.nist.gov (CVE-2026-40585)

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