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VulnerabilityPublished

CVE-2026-126659: blueprintue-self-hosted-edition · Unthrottled Resource Allocation

Affects blueprintue-self-hosted-editionSource CVE Database V5

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Not known to be exploited · CVSS 8.7 High : upgrade to 4.3.5 soon.

Data as of 11 Nov 2026, 12:47 UTC

CVSS 4.0 base score
8.7High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (VulnCheck)CVSS 4.08.7
CNA (VulnCheck)CVSS 3.17.5
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:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Nov 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 11 Nov 2026.

What to do

Upgrade blueprintue-self-hosted-edition to 4.3.5.

Affected software

ProductAffectedFixed in
blueprintueblueprintue-self-hosted-editionAffected
  • >=1.0.0 <4.3.5
Fixed in
  • 4.3.5
GitHubblueprintue-self-hosted-editionpkg:github/blueprintue-self-hosted-editionOther threatsAffected
  • >=1.0.0 <4.3.5
Fixed in
  • 4.3.5

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

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