Medium
Capgo - App Existence Oracle via GET /statistics/app/:app_id
Type: advisorySources: OSV
Capgo before 12.128.2 contains an information disclosure vulnerability in the GET /statistics/app/:app_id endpoint that allows app-limited API keys to distinguish existing sibling app IDs through differential error responses. Attackers can enumerate real app IDs outside their allowed scope by observing 500 PGRST116 errors for inaccessible apps versus 401 errors for nonexistent apps, breaking tenant isolation.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-56319
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 2 Nov 2026, 20:06 UTC · Revision 1
Source evidence
Capgo - App Existence Oracle via GET /statistics/app/:app_id
core-osv · Original sourcePublished 20 Jun 2026, 15:24 UTC
Capgo before 12.128.2 contains an information disclosure vulnerability in the GET /statistics/app/:app_id endpoint that allows app-limited API keys to distinguish existing sibling app IDs through differential error responses. Attackers can enumerate real app IDs outside their allowed scope by observing 500 PGRST116 errors for inaccessible apps versus 401 errors for nonexistent apps, breaking tenant isolation.
osv:CVE-2026-56319
Complete source record
{
"id": "d01ddf186d010910d307083e923b68ef44f230c7b5816a1deb61e285e744a718",
"url": "https://osv.dev/vulnerability/CVE-2026-56319",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Capgo - App Existence Oracle via GET /statistics/app/:app_id",
"summary": "Capgo before 12.128.2 contains an information disclosure vulnerability in the GET /statistics/app/:app_id endpoint that allows app-limited API keys to distinguish existing sibling app IDs through differential error responses. Attackers can enumerate real app IDs outside their allowed scope by observing 500 PGRST116 errors for inaccessible apps versus 401 errors for nonexistent apps, breaking tenant isolation.",
"evidence": "osv:CVE-2026-56319",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2026-56319",
"aliases": [
"CVE-2026-56319",
"GHSA-73p9-mprg-7r75"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/Cap-go/capgo.app",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "6685e5f11adef257bf3d085e481f4d8ebcec602e"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "12.128.2"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"introduced": "0"
},
{
"fixed": "12.128.2"
}
],
"source": "DESCRIPTION"
}
]
}
}
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"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-56319.json"
}
}
],
"modified": "2026-10-28T02:30:23.394105747Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56319.json",
"https://github.com/Cap-go/capgo/security/advisories/GHSA-73p9-mprg-7r75",
"https://nvd.nist.gov/vuln/detail/CVE-2026-56319",
"https://www.vulncheck.com/advisories/capgo-app-existence-oracle-via-get-statistics-app-app-id"
],
"provider_metadata": {
"cwe_ids": [
"CWE-203"
],
"cna_assigner": "VulnCheck",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56319.json"
}
},
"related_cves": [
{
"value": "CVE-2026-56319",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 489636,
"published_at": "2026-06-20T15:24:48.15+00:00"
}