CVE-2026-126659 · Other
NO FIX YET · SEE WHAT TO DO
BlueprintUE Self-Hosted Edition before 4.3.5 lets unauthenticated users create anonymous blueprints that never expire, and the purge routine does not clear them. An attacker can keep submitting large requests until the server's storage is full, denying service to everyone else.
first public Nov 10, 2026 · 1 source
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Teams that run BlueprintUE Self-Hosted Edition on their own infrastructure with anonymous blueprint creation reachable from the internet or their network. Instances on managed hosting or at 4.3.5 and later are not affected by this description.
Not affected if managed-hosting, version-4.3.5-or-later
Who cares blueprintue, self-hosted
4.3.5; anything below that in the 1.0.0 to 4.3.5 range is affected.4.3.5 or later (fixed version per NVD 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.
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This page as .md · .json · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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