CVE-2026-56245Public exploitNetwork attack vector

Unauthenticated billing data poisoning via exposed RPC

Published Jun 24, 2026 · Updated Jun 24, 2026

Authorization bypass in Capgo before 12.128.2 allows remote attackers to alter cross-tenant build-time billing records via an RPC call. The SECURITY DEFINER public.record_build_time function grants anon callers INSERT or UPDATE access to public.build_logs without an authorization check. A public Supabase publishable key is sufficient; forged organization and build identifiers can inflate quota usage, corrupt billing data, and increase storage load.

CVSS severity8.8
High
EPSS probability0.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in Capgo before 12.128.2 allows remote attackers to alter cross-tenant build-time billing records via an RPC call. The SECURITY DEFINER public.record_build_time function grants anon callers INSERT or UPDATE access to public.build_logs without an authorization check. A public Supabase publishable key is sufficient; forged organization and build identifiers can inflate quota usage, corrupt billing data, and increase storage load.

The record

CVE
CVE-2026-56245
Published
Jun 24, 2026
Updated
Jun 24, 2026
Vendor
Capgo
Product
Capgo
Classifications
CWE-285, CWE-862, CWE-269, T1565.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 24, 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 privilegesunauthenticated

What is affected?

Capgo · Capgoversion=0 <12.128.2

Published CVSS scores

8.8VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N
8.2VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-285Improper Authorization
CWE-862Missing Authorization
CWE-269Improper Privilege Management
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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