CVE-2026-56082Public exploitNetwork attack vector

Unauthenticated billing log tampering via exposed RPC

Published Jun 19, 2026 · Updated Jun 19, 2026

Improper access control in Capgo before 12.128.2 allows remote attackers to tamper with cross-tenant billing logs via a public RPC. The SECURITY DEFINER public.record_build_time function grants the anon role an upsert into public.build_logs and overwrites matching build and organization identifiers. A public Supabase anon key plus valid organization and user identifiers is sufficient to falsify usage records or inflate billable build time.

CVSS severity8.7
High
EPSS probability0.37%
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 remote attackers to tamper with cross-tenant billing logs via a public RPC. The SECURITY DEFINER public.record_build_time function grants the anon role an upsert into public.build_logs and overwrites matching build and organization identifiers. A public Supabase anon key plus valid organization and user identifiers is sufficient to falsify usage records or inflate billable build time.

The record

CVE
CVE-2026-56082
Published
Jun 19, 2026
Updated
Jun 19, 2026
Vendor
Capgo
Product
Capgo
Classifications
CWE-284, CWE-862, T1565.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 19, 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

8.7GitHub Advisory DatabaseCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA: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.

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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-284Improper Access Control
CWE-862Missing Authorization
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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