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VulnerabilityPublished

CVE-2026-40585: blueprintue-self-hosted-edition · Weak Password Recovery

Affects blueprintue-self-hosted-editionSource CVE Database V5

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Not known to be exploited · CVSS 7.4 High : upgrade to 4.2.0 soon.

Data as of 29 Oct 2026, 19:04 UTC

CVSS 3.1 base score
7.4High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 18% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 4.2.0
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 21 Apr 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Upgrade blueprintue-self-hosted-edition and blueprintue/blueprintue-self-hosted-edition to 4.2.0.

Affected software

ProductAffectedFixed in
blueprintueblueprintue-self-hosted-editionAffected
  • <4.2.0
Fixed in
  • 4.2.0
GitHubblueprintue/blueprintue-self-hosted-editionpkg:github/blueprintue/blueprintue-self-hosted-editionOther threatsAffected
  • <4.2.0
Fixed in
  • 4.2.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade blueprintue-self-hosted-edition to version 4.2.0 or later, where the password reset token expiration check is properly implemented. Until upgraded, consider invalidating outstanding password reset tokens manually if possible. Patch status is not explicitly stated but the vendor fixed the issue in version 4.2.0, so applying this official fix is the recommended remediation.

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.

References

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