CVE-2026-126659: blueprintue-self-hosted-edition · Unthrottled Resource Allocation
Affects blueprintue-self-hosted-editionSource CVE Database V5
Not known to be exploited · CVSS 8.7 High : upgrade to 4.3.5 soon.
Data as of 11 Nov 2026, 12:47 UTC
Thin evidence
One scorer or none| CNA (VulnCheck) | CVSS 4.0 | 8.7 |
|---|---|---|
| CNA (VulnCheck) | CVSS 3.1 | 7.5 |
- Patch
- Available – fixed in 4.3.5
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 11 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 11 Nov 2026.
What to do
Upgrade blueprintue-self-hosted-edition to 4.3.5.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| blueprintueblueprintue-self-hosted-edition | Affected
| Fixed in
|
GitHubblueprintue-self-hosted-editionpkg:github/blueprintue-self-hosted-editionOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade to BlueprintUE Self-Hosted Edition version 4.3.5 or later, where this resource exhaustion vulnerability is fixed. No other mitigation is indicated by the vendor advisory.
Description
BlueprintUE Self-Hosted Edition versions 1.0.0 through before 4.3.5 contain a resource exhaustion vulnerability. Unauthenticated attackers can repeatedly create anonymous blueprints with a 'never' expiration, bypassing automatic purges. This allows attackers to fill server storage, leading to denial of service. The vulnerability is fixed in version 4.3.5.
References
- github.com/blueprintue/blueprintue-self-hosted-edition/security/advisories/GHSA-q2vm-p36g-w596 (opens in a new tab)
- github.com/blueprintue/blueprintue-self-hosted-edition/commit/0709b39851bf58febccf0bc74b88fa86070410de (opens in a new tab)
- github.com/blueprintue/blueprintue-self-hosted-edition/pull/268 (opens in a new tab)
- github.com/blueprintue/blueprintue-self-hosted-edition/releases/tag/v4.3.5 (opens in a new tab)
- github.com/blueprintue/blueprintue-self-hosted-edition/blob/v4.3.4/app/controllers/www/HomeController.php (opens in a new tab)
- vulncheck.com/advisories/blueprintue-self-hosted-edition-1.0.0-before-4.3.5-storage-exhaustion-via-anonymous-blueprints (opens in a new tab)