What is CVE-2026-56255?

CVE-2026-56255 is a medium-severity vulnerability in Capgo, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 4.3/10. Published 2026-06-22.

How severe is CVE-2026-56255?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Resource exhaustion in Capgo

CVE-2026-56255

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. At…

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

Affected products

Capgo — versions 0, 12.128.2

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-56255?: CVE-2026-56255 is a medium-severity vulnerability in Capgo, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 4.3/10. Published 2026-06-22.
How severe is CVE-2026-56255?: Medium severity. CVSS v3 base score is 4.3 out of 10.