CVE-2019-11248 (GCVE-0-2019-11248)
Vulnerability from cvelistv5 – Published: 2019-08-29 00:26 – Updated: 2024-09-17 03:28Title
Kubernetes kubelet exposes /debug/pprof info on healthz port
Summary
The debugging endpoint /debug/pprof is exposed over the unauthenticated Kubelet healthz port. The go pprof endpoint is exposed over the Kubelet's healthz port. This debugging endpoint can potentially leak sensitive information such as internal Kubelet memory addresses and configuration, or for limited denial of service. Versions prior to 1.15.0, 1.14.4, 1.13.8, and 1.12.10 are affected. The issue is of medium severity, but not exposed by the default configuration.
Severity
6.5 (Medium)
CWE
- CWE-419 - Unprotected Primary Channel
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/kubernetes/kubernetes/issues/81023 | x_refsource_CONFIRM |
| https://groups.google.com/d/msg/kubernetes-securi… | mailing-listx_refsource_MLIST |
| https://security.netapp.com/advisory/ntap-2019091… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Kubernetes | Kubernetes |
Affected:
prior to 1.12.10
Affected: prior to 1.13.8 Affected: prior to 1.14.4 Affected: 1.1 Affected: 1.2 Affected: 1.4 Affected: 1.5 Affected: 1.6 Affected: 1.7 Affected: 1.8 Affected: 1.9 Affected: 1.10 Affected: 1.11 |
guessed |
Date Public
2019-08-06 00:00
Shadowserver
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: d0ffaf1e-ecd1-4aa7-9a90-22124fe6cbca
Exploited: Yes
Characteristics
Severity:
82.0
Timestamps
First Seen: 2023-10-14
Asserted: 2023-10-14
Last Seen: 2026-09-07
Scope
Asset Exposure: ['internet-facing']
Notes: Affected: Kubernetes / Kubernetes (Kubelet) | Class: other-software | Severity: High (CVSS 8.2) | IoT: no | In CISA KEV: no | Honeypot connections on 2026-09-07: 1
Evidence
Type: Honeypot
Signal: In The Wild Attempts
Confidence: 70%
Source: shadowserver
Details
| 1D | 1 |
|---|---|
| Iot | no |
| Feed | Shadowserver Foundation honeypot/exploited-vulnerabilities |
| Type | http-scan |
| Class | other-software |
| 7D Avg | 0 |
| Vendor | Kubernetes |
| 30D Avg | 0 |
| 90D Avg | 2 |
| Product | Kubernetes (Kubelet) |
| Cisa Kev | no |
| Connections | 1 |
| Observation Date | 2026-09-07 |
| Vulnerability Class | CVSS |
| Vulnerability Score | 8.2 |
| Vulnerability Severity | High |
References
Created: 2026-07-01 05:54 UTC
| Updated: 2026-09-09 01:00 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 1ffcf563-c272-4ee4-b916-c91ba7ee30f6
Exploited: Yes
Timestamps
First Seen: 2025-04-24
Asserted: 2025-04-24
Scope
Notes: KEVIntel entry: Kubernetes kubelet exposes /debug/pprof info on healthz port | Affected: Kubernetes / Kubernetes | CVSS: 6.5 (MEDIUM) | Used in malware: unknown | Not yet in CISA KEV: True
Evidence
Type: Public Report
Signal: Successful Exploitation
Confidence: 70%
Source: kevintel
Details
| Feed | KEVIntel (kevintel.com) |
|---|---|
| Title | Kubernetes kubelet exposes /debug/pprof info on healthz port |
| Vendor | Kubernetes |
| Product | Kubernetes |
| Added Date | 2025-04-24T00:00:00.000Z |
| Cvss Score | 6.5 |
| Epss Score | None |
| Cvss Severity | MEDIUM |
| Epss Percentile | None |
| Used In Malware | unknown |
| Ahead Of Cisa Kev | None |
| Not Yet In Cisa Kev | True |
References
Created: 2026-06-23 11:13 UTC
| Updated: 2026-06-23 11:13 UTC
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"matchCriteriaId": "B87B49B8-1441-45B6-9A72-E3C5A278883D",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:kubernetes:kubernetes:1.15.0:alpha1:*:*:*:*:*:*",
"matchCriteriaId": "5A14876D-D0FA-4883-AEC6-28E29F5E3CA7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:kubernetes:kubernetes:1.15.0:alpha2:*:*:*:*:*:*",
"matchCriteriaId": "401E0997-C67F-471C-B596-92B9773A3AEF",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:kubernetes:kubernetes:1.15.0:alpha3:*:*:*:*:*:*",
"matchCriteriaId": "BF1B7B10-AC15-4022-BDC9-71CF82130E3B",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:kubernetes:kubernetes:1.15.0:beta0:*:*:*:*:*:*",
"matchCriteriaId": "550C5D3B-2C70-4411-A54D-3D07EAEFD7E7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:kubernetes:kubernetes:1.15.0:beta1:*:*:*:*:*:*",
"matchCriteriaId": "FE430085-EA45-43B6-8AF2-30AD462D0F69",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:kubernetes:kubernetes:1.15.0:beta2:*:*:*:*:*:*",
"matchCriteriaId": "5652A16C-F032-4FC0-BFEC-04768D259470",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:kubernetes:kubernetes:1.15.0:rc1:*:*:*:*:*:*",
"matchCriteriaId": "874991D0-5C48-4D10-B2E4-51D6BE2298E4",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The debugging endpoint /debug/pprof is exposed over the unauthenticated Kubelet healthz port. The go pprof endpoint is exposed over the Kubelet\u0027s healthz port. This debugging endpoint can potentially leak sensitive information such as internal Kubelet memory addresses and configuration, or for limited denial of service. Versions prior to 1.15.0, 1.14.4, 1.13.8, and 1.12.10 are affected. The issue is of medium severity, but not exposed by the default configuration."
},
{
"lang": "es",
"value": "El extremo de depuraci\u00f3n /debug/pprof se expone a trav\u00e9s del puerto de salud de Kubelet no autenticado. El punto final del pprof go se expone sobre el puerto healthz del Kubelet. Este extremo de depuraci\u00f3n puede filtrar informaci\u00f3n confidencial, como las direcciones internas de memoria y la configuraci\u00f3n de Kubelet, o por una denegaci\u00f3n de servicio limitada. Las versiones anteriores a 1.15.0, 1.14.4, 1.13.8 y 1.12.10 se ven afectadas. El problema es de gravedad media, pero no expuesto por la configuraci\u00f3n predeterminada."
}
],
"id": "CVE-2019-11248",
"lastModified": "2024-11-21T04:20:48.100",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 6.4,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 4.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV30": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
"version": "3.0"
},
"exploitabilityScore": 3.9,
"impactScore": 2.5,
"source": "jordan@liggitt.net",
"type": "Secondary"
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 8.2,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 4.2,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2019-08-29T01:15:11.367",
"references": [
{
"source": "jordan@liggitt.net",
"tags": [
"Patch",
"Third Party Advisory"
],
"url": "https://github.com/kubernetes/kubernetes/issues/81023"
},
{
"source": "jordan@liggitt.net",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://groups.google.com/d/msg/kubernetes-security-announce/pKELclHIov8/BEDtRELACQAJ"
},
{
"source": "jordan@liggitt.net",
"tags": [
"Third Party Advisory"
],
"url": "https://security.netapp.com/advisory/ntap-20190919-0003/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch",
"Third Party Advisory"
],
"url": "https://github.com/kubernetes/kubernetes/issues/81023"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://groups.google.com/d/msg/kubernetes-security-announce/pKELclHIov8/BEDtRELACQAJ"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://security.netapp.com/advisory/ntap-20190919-0003/"
}
],
"sourceIdentifier": "jordan@liggitt.net",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-419"
}
],
"source": "jordan@liggitt.net",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-862"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-01-13T21:25:51+00:00",
"cve": "CVE-2019-11248",
"id": "CVE-2019-11248",
"initial_release_date": "2019-08-07T00:00:00+00:00",
"product_status:known_affected": "8",
"product_status:known_not_affected": "47",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kubernetes: /debug/pprof endpoint exposed on kubelet\u0027s healthz port",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2019/cve-2019-11248.json",
"version": "3"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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