CVE-2026-55797
Argo CD es una herramienta declarativa de entrega continua GitOps para Kubernetes. Desde la versión 2.11.0 hasta 3.3.15, 3.4.10, 3.5.4 y 3.6.0-rc2, el repo-server de Argo CD es vulnerable a inyección de comandos cuando clona, prueba u obtiene un repositorio Git SSH configurado con una URL de proxy. El host y puerto del proxy se incrustan en un comando SSH ProxyCommand que se ejecuta a través de un shell sin neutralizar metacaracteres de shell. Un usuario que puede crear o actualizar un repositorio o plantilla de credenciales de repositorio puede proporcionar un host proxy manipulado para ejecutar comandos en el repo-server y acceder a sus credenciales de Git, Helm y OCI. Este problema se ha corregido en las versiones 3.3.15, 3.4.10, 3.5.4 y 3.6.0-rc2.
Traducción automática del texto original de NVD (en inglés).
CVSS
- Puntuación base
- 8.8
- Versión
- 3.1
- Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días
- 1.55 %
- Percentil entre todas las CVEs puntuadas
- 75
- Fecha de la puntuación
- 20/10/2026
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 movement90 % - Impacto principal
T1059Command and Scripting Interpreterexecution90 % - Impacto secundario
T1098Account Manipulationpersistence · privilege escalation75 % - Impacto secundario
T1552Unsecured Credentialscredential access85 %
AV:N/PR:L sin UI permite explotar repo-server remoto vía inyección de comandos en ProxyCommand SSH; acceso a credenciales Git/Helm/OCI del servidor.
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-78
Referencias
Mostrar las 8 referencias
- https://github.com/argoproj/argo-cd/commit/1e3ddd0b7250aa23f489956b5fab8c13d0493a9f
- https://github.com/argoproj/argo-cd/commit/9b27aeb1a4fb15d11a0f01cad65dea1fdfc60205
- https://github.com/argoproj/argo-cd/pull/15864
- https://github.com/argoproj/argo-cd/releases/tag/v3.3.15
- https://github.com/argoproj/argo-cd/releases/tag/v3.4.10
- https://github.com/argoproj/argo-cd/releases/tag/v3.5.4
- https://github.com/argoproj/argo-cd/releases/tag/v3.6.0-rc2
- https://github.com/argoproj/argo-cd/security/advisories/GHSA-j6cw-g6p4-7hch
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-55797",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-55797",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"version": "2.0.3",
"timestamp": "2026-10-09T17:53:47.301776Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "security-advisories@github.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 8.8,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 2.8
}
]
},
"affected": [
{
"source": "security-advisories@github.com",
"affectedData": [
{
"vendor": "argoproj",
"product": "argo-cd",
"versions": [
{
"status": "affected",
"version": ">= 2.11.0, <= 2.14.21"
},
{
"status": "affected",
"version": ">= 3.0.0, < 3.3.15"
},
{
"status": "affected",
"version": ">= 3.4.0, < 3.4.10"
},
{
"status": "affected",
"version": ">= 3.5.0, < 3.5.4"
},
{
"status": "affected",
"version": "= 3.6.0-rc1"
}
]
}
]
}
],
"published": "2026-10-09T17:16:47.710",
"references": [
{
"url": "https://github.com/argoproj/argo-cd/commit/1e3ddd0b7250aa23f489956b5fab8c13d0493a9f",
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/argoproj/argo-cd/commit/9b27aeb1a4fb15d11a0f01cad65dea1fdfc60205",
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/argoproj/argo-cd/pull/15864",
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/argoproj/argo-cd/releases/tag/v3.3.15",
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/argoproj/argo-cd/releases/tag/v3.4.10",
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/argoproj/argo-cd/releases/tag/v3.5.4",
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/argoproj/argo-cd/releases/tag/v3.6.0-rc2",
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/argoproj/argo-cd/security/advisories/GHSA-j6cw-g6p4-7hch",
"source": "security-advisories@github.com"
}
],
"vulnStatus": "Awaiting Analysis",
"weaknesses": [
{
"type": "Secondary",
"source": "security-advisories@github.com",
"description": [
{
"lang": "en",
"value": "CWE-78"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. From 2.11.0 until 3.3.15, 3.4.10, 3.5.4, and 3.6.0-rc2, the Argo CD repo-server is vulnerable to command injection when it clones, tests, or fetches an SSH Git repository configured with a proxy URL. The proxy host and port are embedded in an SSH ProxyCommand that is executed through a shell without neutralizing shell metacharacters. A user who can create or update a repository or repository credential template can supply a crafted proxy host to execute commands in the repo-server and access its Git, Helm, and OCI credentials. This issue is fixed in versions 3.3.15, 3.4.10, 3.5.4, and 3.6.0-rc2."
}
],
"lastModified": "2026-10-09T18:17:08.530",
"sourceIdentifier": "security-advisories@github.com"
}