CVE-2026-56255
Capgo - Denial of Service via Unlimited Demo App Creation
- State
- Published
- Severity
- 5.3 Medium
- Published
- Jun 22, 2026
- Updated
- Jun 23, 2026
- Reserved
- Jun 19, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 4.3 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L | VulnCheck |
Weaknesses
- CWE-770 Allocation of Resources Without Limits or Throttling
Affected Products
| Product | Versions |
|---|---|
CapgoCapgo |
|
References
- GitHub Security Advisory (GHSA-q2xx-6h9x-43fw)vendor-advisory
- VulnCheck Advisory: Capgo - Denial of Service via Unlimited Demo App Creationthird-party-advisory
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