CVE-2026-12715
Missing Authorization in Google Cloud Firebase Studio versions prior to 2026-04-15 on Google Cloud Platform allows an attacker to download other users' deployed source code and access sensitive data via unauthorized GCS URL signing requests.
This vulnerability was patched on 15 April 2026, and no customer action is needed.
CVSS
- Versión: 4.0
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Clear
- Puntuación base: 8.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.35%
- Percentil entre todas las CVEs puntuadas: 26
- Fecha de la puntuación: 5/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1210Exploitation of Remote Serviceslateral movement75 % - Impacto principal
T1005Data from Local Systemcollection80 % - Impacto secundario
T1078Valid Accountsstealth · persistence · privilege escalation · initial access65 % - Impacto secundario
T1552Unsecured Credentialscredential access75 %
AV:N/PR:L sin UI:R indica explotación remota con privilegios autenticados (T1210). El atacante accede a código fuente y datos sensibles ajenos mediante solicitudes GCS no autorizadas (T1005, T1552); T1078 secundario por implicación de credenciales de otros usuarios.
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (2)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
CWE
- CWE-862
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-12715",
"cveTags": [],
"metrics": {
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{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-12715",
"role": "CISA Coordinator",
"options": [
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"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-07-17T15:28:39.995725Z"
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"baseSeverity": "HIGH",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Clear",
"exploitMaturity": "NOT_DEFINED",
"providerUrgency": "CLEAR",
"userInteraction": "NONE",
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"privilegesRequired": "LOW",
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"vulnIntegrityImpact": "NONE",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"subAvailabilityImpact": "HIGH",
"vulnAvailabilityImpact": "NONE",
"availabilityRequirement": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"subConfidentialityImpact": "HIGH",
"vulnConfidentialityImpact": "HIGH",
"confidentialityRequirement": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED"
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"affected": [
{
"source": "f45cbf4e-4146-4068-b7e1-655ffc2c548c",
"affectedData": [
{
"vendor": "Google Cloud",
"product": "Firebase Studio",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "2026-04-15",
"versionType": "date"
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],
"defaultStatus": "unaffected"
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}
],
"published": "2026-07-17T16:17:13.047",
"references": [
{
"url": "https://docs.cloud.google.com/support/bulletins#gcp-2026-043",
"source": "f45cbf4e-4146-4068-b7e1-655ffc2c548c"
}
],
"vulnStatus": "Awaiting Analysis",
"weaknesses": [
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"type": "Secondary",
"source": "f45cbf4e-4146-4068-b7e1-655ffc2c548c",
"description": [
{
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"descriptions": [
{
"lang": "en",
"value": "Missing Authorization in Google Cloud Firebase Studio versions prior to 2026-04-15 on Google Cloud Platform allows an attacker to download other users' deployed source code and access sensitive data via unauthorized GCS URL signing requests.\n\n\nThis vulnerability was patched on 15 April 2026, and no customer action is needed."
}
],
"lastModified": "2026-07-17T18:08:08.140",
"sourceIdentifier": "f45cbf4e-4146-4068-b7e1-655ffc2c548c"
}