CVE-2026-56082 (GCVE-0-2026-56082)
Vulnerability from cvelistv5 – Published: 2026-06-19 21:39 – Updated: 2026-06-20 12:22
VLAI
Title
Capgo - Unauthenticated Cross-Tenant Billing Log Tampering via public.record_build_time RPC
Summary
Capgo (Cap-go/capgo) before 12.128.2 contains an improper access control vulnerability in the SECURITY DEFINER PostgREST RPC function public.record_build_time, which is granted to the anon role and callable with only the public Supabase publishable (sb_publishable_*) anon key. An unauthenticated attacker can insert rows into public.build_logs for arbitrary organizations and, because the function uses ON CONFLICT (build_id, org_id) DO UPDATE, can overwrite existing usage/billing records by reusing the same build_id for a target org. This enables cross-tenant tampering of billing build logs and financial-impact denial of service by inflating billable build time.
Severity
CWE
- CWE-284 - Improper Access Control
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/Cap-go/capgo/security/advisori… | vendor-advisory |
| https://www.vulncheck.com/advisories/supabase-una… | third-party-advisory |
Impacted products
Date Public
2026-03-17 00:00
Credits
{
"containers": {
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"affected": [
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"defaultStatus": "unaffected",
"product": "capgo",
"vendor": "Cap-go",
"versions": [
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"descriptions": [
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"value": "Capgo (Cap-go/capgo) before 12.128.2 contains an improper access control vulnerability in the SECURITY DEFINER PostgREST RPC function public.record_build_time, which is granted to the anon role and callable with only the public Supabase publishable (sb_publishable_*) anon key. An unauthenticated attacker can insert rows into public.build_logs for arbitrary organizations and, because the function uses ON CONFLICT (build_id, org_id) DO UPDATE, can overwrite existing usage/billing records by reusing the same build_id for a target org. This enables cross-tenant tampering of billing build logs and financial-impact denial of service by inflating billable build time."
}
],
"metrics": [
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"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
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"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 8.7,
"baseSeverity": "HIGH",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
"version": "4.0",
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"vulnerabilityResponseEffort": "NOT_DEFINED"
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"integrityImpact": "HIGH",
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"scope": "UNCHANGED",
"userInteraction": "NONE",
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"description": "Improper Access Control",
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"providerMetadata": {
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"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"shortName": "VulnCheck"
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"references": [
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"name": "GHSA Advisory GHSA-42xj-3h9w-26h5",
"tags": [
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"url": "https://github.com/Cap-go/capgo/security/advisories/GHSA-42xj-3h9w-26h5"
},
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"tags": [
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"url": "https://www.vulncheck.com/advisories/supabase-unauthenticated-cross-tenant-billing-log-tampering-via-public-record-build-time-rpc"
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"title": "Capgo - Unauthenticated Cross-Tenant Billing Log Tampering via public.record_build_time RPC",
"x_generator": {
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"cveId": "CVE-2026-56082",
"datePublished": "2026-06-19T21:39:21.619Z",
"dateReserved": "2026-06-18T15:57:20.434Z",
"dateUpdated": "2026-06-20T12:22:19.899Z",
"state": "PUBLISHED"
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"dataType": "CVE_RECORD",
"dataVersion": "5.2"
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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