CVE-2025-59538
Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. For versions 2.9.0-rc1 through 2.14.19, 3.0.0-rc1 through 3.2.0-rc1, 3.1.6 and 3.0.17, when the webhook.azuredevops.username and webhook.azuredevops.password are not set in the default configuration, the /api/webhook endpoint crashes the entire argocd-server process when it receives an Azure DevOps Push event whose JSON array resource.refUpdates is empty. The slice index [0] is accessed without a length check, causing an index-out-of-range panic. A single unauthenticated HTTP POST is enough to kill the process. This issue is resolved in versions 2.14.20, 3.2.0-rc2, 3.1.8 and 3.0.19.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 7.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 8.93%
- Percentil entre todas las CVEs puntuadas: 95
- 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
T1190Exploit Public-Facing Applicationinitial access95 % - Impacto principal
T1499.004Application or System Exploitationimpact90 %
AV:N/PR:N/UI:N indica exposición web remota sin autenticación. El crash por acceso a índice sin validación causa DoS del proceso argocd-server mediante POST HTTP único al endpoint /api/webhook.
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)
CWE
- CWE-248, CWE-703
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2025-59538",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2025-59538",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2025-10-02T15:32:22.380180Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "security-advisories@github.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.5,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 3.9
}
]
},
"affected": [
{
"source": "security-advisories@github.com",
"affectedData": [
{
"vendor": "argoproj",
"product": "argo-cd",
"versions": [
{
"status": "affected",
"version": ">= 2.9.0-rc1, < 2.14.20"
},
{
"status": "affected",
"version": ">= 3.2.0-rc1, < 3.2.0-rc2"
},
{
"status": "affected",
"version": ">= 3.1.0-rc1, < 3.1.8"
},
{
"status": "affected",
"version": ">= 3.0.0-rc1, < 3.0.19"
}
]
}
]
}
],
"published": "2025-10-01T21:16:43.800",
"references": [
{
"url": "https://github.com/argoproj/argo-cd/commit/1a023f1ca7fe4ec942b4b6696804988d5a632baf",
"tags": [
"Patch"
],
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/argoproj/argo-cd/security/advisories/GHSA-gpx4-37g2-c8pv",
"tags": [
"Exploit",
"Vendor Advisory"
],
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/argoproj/argo-cd/security/advisories/GHSA-gpx4-37g2-c8pv",
"tags": [
"Exploit",
"Vendor Advisory"
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
}
],
"vulnStatus": "Analyzed",
"weaknesses": [
{
"type": "Secondary",
"source": "security-advisories@github.com",
"description": [
{
"lang": "en",
"value": "CWE-248"
},
{
"lang": "en",
"value": "CWE-703"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. For versions 2.9.0-rc1 through 2.14.19, 3.0.0-rc1 through 3.2.0-rc1, 3.1.6 and 3.0.17, when the webhook.azuredevops.username and webhook.azuredevops.password are not set in the default configuration, the /api/webhook endpoint crashes the entire argocd-server process when it receives an Azure DevOps Push event whose JSON array resource.refUpdates is empty. The slice index [0] is accessed without a length check, causing an index-out-of-range panic. A single unauthenticated HTTP POST is enough to kill the process. This issue is resolved in versions 2.14.20, 3.2.0-rc2, 3.1.8 and 3.0.19."
}
],
"lastModified": "2026-06-17T09:46:21.580",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:argoproj:argo_cd:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "3811C238-65B6-4B66-A82C-112ED72F66C9",
"versionEndExcluding": "2.14.20",
"versionStartIncluding": "2.9.0"
},
{
"criteria": "cpe:2.3:a:argoproj:argo_cd:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E7FEAEBF-40B8-40E4-B34B-2785B0FEAFEB",
"versionEndExcluding": "3.0.19",
"versionStartIncluding": "3.0.0"
},
{
"criteria": "cpe:2.3:a:argoproj:argo_cd:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "AFF4E847-D3D6-457A-A47B-98799D28E20E",
"versionEndExcluding": "3.1.8",
"versionStartIncluding": "3.1.0"
},
{
"criteria": "cpe:2.3:a:argoproj:argo_cd:3.2.0:rc1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "247C0721-E494-4732-BF53-F249C574A702"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "security-advisories@github.com"
}