CVE-2026-126659

Description

BlueprintUE Self-Hosted Edition 1.0.0 before 4.3.5 contains a resource exhaustion vulnerability that allows unauthenticated attackers to fill server storage by repeatedly creating anonymous blueprints. Attackers can send large requests to HomeController::doProcessCreateBlueprint() with a 'never' expiration, bypassing purges to fill the disk and deny service.

References

• https://github.com/blueprintue/blueprintue-self-hosted-edition/blob/v4.3.4/app/controllers/www/HomeController.php#L151-L214
• https://github.com/blueprintue/blueprintue-self-hosted-edition/commit/0709b39851bf58febccf0bc74b88fa86070410de
• https://github.com/blueprintue/blueprintue-self-hosted-edition/pull/268
• https://github.com/blueprintue/blueprintue-self-hosted-edition/releases/tag/v4.3.5
• https://github.com/blueprintue/blueprintue-self-hosted-edition/security/advisories/GHSA-q2vm-p36g-w596