CVE-2026-56255

Summary

Capgo before 12.128.2 contains a denial of service vulnerability in the POST /app/demo endpoint that allows authenticated users with org write permissions to create unlimited demo applications without rate limiting or quota enforcement. Attackers can repeatedly invoke this endpoint to generate approximately 138 database write operations per request, causing degraded performance, increased costs, and potential service instability.

Affected Software

Weaknesses

• CWE-770: Allocation of Resources Without Limits or Throttling

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: no
  • Technical Impact: partial

Additional References

• https://github.com/Cap-go/capgo/security/advisories/GHSA-q2xx-6h9x-43fw

References

• https://github.com/Cap-go/capgo/security/advisories/GHSA-q2xx-6h9x-43fw
• https://www.vulncheck.com/advisories/capgo-denial-of-service-via-unlimited-demo-app-creation

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