What is CVE-2026-56334?

CVE-2026-56334 is a medium-severity vulnerability in Capgo, classified under Improper Access Control. CVSS score: 4.3/10. Published 2026-06-30.

How severe is CVE-2026-56334?

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

Vulnerability in Capgo

CVE-2026-56334

Capgo before 12.128.2 lacks an UPDATE row-level security policy for the build_requests table, preventing API-key and anonymous access from persisting builder status updates. Attackers can exploit this missing policy to cause build status and error details to remain unpersisted, leaving build_requests rows stuck in pending state with null last_error values.

EPSS: 0.002 (9.2th percentile) — read the EPSS interpretation.

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:L/A:N.

Affected products

Capgo — versions 0, 12.128.2

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

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

Frequently asked questions

What is CVE-2026-56334?: CVE-2026-56334 is a medium-severity vulnerability in Capgo, classified under Improper Access Control. CVSS score: 4.3/10. Published 2026-06-30.
How severe is CVE-2026-56334?: Medium severity. CVSS v3 base score is 4.3 out of 10.