CVE-2026-56334Public exploitNetwork attack vector

Build status disruption via missing UPDATE policy

Published Jun 30, 2026 · Updated Jun 30, 2026

Improper access control in Capgo before 12.128.2 allows attackers to prevent builder status updates from being persisted. The build_requests table has row-level security enabled but no UPDATE policy for API-key or anonymous roles, so builder writes for status and last_error are rejected. Reachability requires access to the build workflow; affected requests remain pending and lose error details, without reported data disclosure or code execution.

CVSS severity5.3
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Capgo before 12.128.2 allows attackers to prevent builder status updates from being persisted. The build_requests table has row-level security enabled but no UPDATE policy for API-key or anonymous roles, so builder writes for status and last_error are rejected. Reachability requires access to the build workflow; affected requests remain pending and lose error details, without reported data disclosure or code execution.

The record

CVE
CVE-2026-56334
Published
Jun 30, 2026
Updated
Jun 30, 2026
Vendor
Capgo
Product
Capgo
Classifications
CWE-284, T1565.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 30, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 30, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <12.128.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Capgo · Capgoversion=0 <12.128.2

Published CVSS scores

5.3VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
4.3VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control
T1565.001Stored Data Manipulation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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