CVE-2026-16493
A flaw was found in ansible-core. The _extract_collection_from_git() function in ansible-core's concrete_artifact_manager.py constructs git clone commands without a '--' (end-of-options) separator before user-supplied URLs when installing collections from git sources. An attacker who provides a crafted collection source URI containing git argument injection payloads can achieve arbitrary command execution when a user runs 'ansible-galaxy collection install' with the malicious source. This is an incomplete fix for CVE-2026-11332, which hardened the role install path but missed the equivalent collection install code path.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Puntuación base: 7.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.17%
- Percentil entre todas las CVEs puntuadas: 6
- Fecha de la puntuación: 6/10/2026
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
T1203Exploitation for Client Executionexecution90 % - Impacto principal
T1059Command and Scripting Interpreterexecution85 % - Impacto secundario
T1565.001Stored Data Manipulationimpact65 %
CVE-2026-16493: Vulnerabilidad en ansible-core con UI:R (requiere que el usuario ejecute ansible-galaxy con fuente maliciosa), explotación en cliente. Impacto: inyección de argumentos git permite ejecución arbitraria de comandos (T1059). Riesgo secundario de manipulación de datos al instalar colecci
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 (1)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
CWE
- CWE-88
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-16493",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-16493",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"version": "2.0.3",
"timestamp": "2026-07-22T14:20:53.644688Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "secalert@redhat.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.8,
"attackVector": "LOCAL",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "REQUIRED",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 1.8
}
]
},
"affected": [
{
"source": "secalert@redhat.com",
"affectedData": [
{
"cpes": [
"cpe:/a:redhat:satellite:6.17::el9",
"cpe:/a:redhat:satellite_capsule:6.17::el9",
"cpe:/a:redhat:satellite_maintenance:6.17::el9",
"cpe:/a:redhat:satellite_utils:6.17::el9"
],
"vendor": "Red Hat",
"product": "Red Hat Satellite 6.17 for RHEL 9",
"versions": [
{
"status": "unaffected",
"version": "1:2.16.19-1.el9sat",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "ansible-core",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:satellite:6.18::el9",
"cpe:/a:redhat:satellite_capsule:6.18::el9",
"cpe:/a:redhat:satellite_maintenance:6.18::el9",
"cpe:/a:redhat:satellite_utils:6.18::el9"
],
"vendor": "Red Hat",
"product": "Red Hat Satellite 6.18 for RHEL 9",
"versions": [
{
"status": "unaffected",
"version": "1:2.16.19-1.el9sat",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "ansible-core",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:satellite:6.18::el9",
"cpe:/a:redhat:satellite_capsule:6.18::el9",
"cpe:/a:redhat:satellite_maintenance:6.18::el9",
"cpe:/a:redhat:satellite_utils:6.18::el9"
],
"vendor": "Red Hat",
"product": "Red Hat Satellite 6.18 for RHEL 9",
"versions": [
{
"status": "unaffected",
"version": "0:1.3.1-5.el9pc",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "pulpcore-obsolete-packages",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:satellite:6.18::el9",
"cpe:/a:redhat:satellite_capsule:6.18::el9",
"cpe:/a:redhat:satellite_maintenance:6.18::el9",
"cpe:/a:redhat:satellite_utils:6.18::el9"
],
"vendor": "Red Hat",
"product": "Red Hat Satellite 6.18 for RHEL 9",
"versions": [
{
"status": "unaffected",
"version": "0:3.73.30-3.el9pc",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "python3.12-pulpcore",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:satellite:6.19::el9",
"cpe:/a:redhat:satellite_capsule:6.19::el9",
"cpe:/a:redhat:satellite_maintenance:6.19::el9",
"cpe:/a:redhat:satellite_utils:6.19::el9"
],
"vendor": "Red Hat",
"product": "Red Hat Satellite 6.19 for RHEL 9",
"versions": [
{
"status": "unaffected",
"version": "1:2.16.19-1.el9sat",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "ansible-core",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:ansible_automation_platform:2"
],
"vendor": "Red Hat",
"product": "Red Hat Ansible Automation Platform 2",
"packageName": "ansible-core",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux:10"
],
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 10",
"packageName": "ansible-core",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux:8"
],
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 8",
"packageName": "ansible-core",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux:9"
],
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9",
"packageName": "ansible-core",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
}
]
}
],
"published": "2026-07-21T18:16:57.030",
"references": [
{
"url": "https://access.redhat.com/errata/RHSA-2026:63385",
"source": "secalert@redhat.com"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:63386",
"source": "secalert@redhat.com"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:63387",
"source": "secalert@redhat.com"
},
{
"url": "https://access.redhat.com/security/cve/CVE-2026-16493",
"source": "secalert@redhat.com"
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2503724",
"source": "secalert@redhat.com"
}
],
"vulnStatus": "Awaiting Analysis",
"weaknesses": [
{
"type": "Secondary",
"source": "secalert@redhat.com",
"description": [
{
"lang": "en",
"value": "CWE-88"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in ansible-core. The _extract_collection_from_git() function in ansible-core's concrete_artifact_manager.py constructs git clone commands without a '--' (end-of-options) separator before user-supplied URLs when installing collections from git sources. An attacker who provides a crafted collection source URI containing git argument injection payloads can achieve arbitrary command execution when a user runs 'ansible-galaxy collection install' with the malicious source. This is an incomplete fix for CVE-2026-11332, which hardened the role install path but missed the equivalent collection install code path."
}
],
"lastModified": "2026-09-04T03:17:41.213",
"sourceIdentifier": "secalert@redhat.com"
}