CVE-2026-41284
Allocation of Resources Without Limits or Throttling vulnerability in Apache Tomcat.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117. Older, unsupported versions may also be affected.
Users are recommended to upgrade to version [FIXED_VERSION], which fixes the issue.
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: 0.86%
- Percentil entre todas las CVEs puntuadas: 57
- 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 access85 % - Impacto principal
T1499.004Application or System Exploitationimpact90 %
CVE-2770 (asignación sin límites) en Tomcat expuesto (AV:N, PR:N, UI:N). Alto impacto en disponibilidad (A:H) sugiere DoS por agotamiento de recursos de aplicación web.
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-770
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-41284",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-41284",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-05-13T15:57:41.987314Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"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@apache.org",
"affectedData": [
{
"vendor": "Apache Software Foundation",
"product": "Apache Tomcat",
"versions": [
{
"status": "affected",
"version": "11.0.0-M1",
"versionType": "semver",
"lessThanOrEqual": "11.0.21"
},
{
"status": "affected",
"version": "10.1.0-M1",
"versionType": "semver",
"lessThanOrEqual": "10.1.54"
},
{
"status": "affected",
"version": "9.0.0.M1",
"versionType": "semver",
"lessThanOrEqual": "9.0.117"
},
{
"status": "affected",
"version": "10.0.0-M1",
"versionType": "semver",
"lessThanOrEqual": "10.0.27"
},
{
"status": "affected",
"version": "8.5.0",
"versionType": "semver",
"lessThanOrEqual": "8.5.100"
},
{
"status": "affected",
"version": "4.0",
"versionType": "semver",
"lessThanOrEqual": "7.0.109"
}
],
"defaultStatus": "unaffected"
}
]
}
],
"published": "2026-05-12T16:16:15.933",
"references": [
{
"url": "https://lists.apache.org/thread/2nvqjr7ovjmvx2vbhb7s61ycd5msc8qc",
"tags": [
"Mailing List",
"Vendor Advisory"
],
"source": "security@apache.org"
},
{
"url": "http://www.openwall.com/lists/oss-security/2026/05/12/12",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Analyzed",
"weaknesses": [
{
"type": "Secondary",
"source": "security@apache.org",
"description": [
{
"lang": "en",
"value": "CWE-770"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Allocation of Resources Without Limits or Throttling vulnerability in Apache Tomcat.\n\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117.\nOlder, unsupported versions may also be affected.\n\nUsers are recommended to upgrade to version [FIXED_VERSION], which fixes the issue."
}
],
"lastModified": "2026-06-17T10:46:26.477",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0D9D0050-8CBC-41DB-9C53-CE7BFF7A3F2D",
"versionEndIncluding": "7.0.109",
"versionStartIncluding": "4.0.0"
},
{
"criteria": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "FF43D0D7-FBF3-4D7A-84C4-47B65A75A524",
"versionEndIncluding": "8.5.100",
"versionStartIncluding": "8.5.0"
},
{
"criteria": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "1E5A897C-91F4-449E-984C-7D693B137EED",
"versionEndExcluding": "9.0.118",
"versionStartIncluding": "9.0.0"
},
{
"criteria": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A1B15E74-3CBE-438A-AF89-84BFAB3C1639",
"versionEndIncluding": "10.0.27",
"versionStartIncluding": "10.0.0"
},
{
"criteria": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5F289287-8587-4BB3-B4AB-3B5CF4A7D27A",
"versionEndExcluding": "10.1.55",
"versionStartIncluding": "10.1.0"
},
{
"criteria": "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "03FB799D-A66F-4792-A0CF-16D67BB53F08",
"versionEndExcluding": "11.0.22",
"versionStartIncluding": "11.0.0"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "security@apache.org"
}