Is CVE-2026-56255 actively exploited?

No active exploitation of CVE-2026-56255 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-56255 be exploited remotely?

Yes. CVE-2026-56255 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-56255?

CVE-2026-56255 has a CVSS score of 4.3 (MEDIUM).

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MEDIUM

CVE-2026-56255

CWE-770Published: June 22, 2026· Updated: Jun 23, 2026

4.3

CVSS v3.1

EPSS:0.27%probability of exploitation in 30 daysPercentile:18.8th

Official 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.

NVD Source

Technical Analysis

CVE-2026-56255 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.