Kubernetes kubelet exposes /debug/pprof info on healthz port
Published Aug 29, 2019
8.2
HIGHCVSS 3.1
EPSS 75.06%
Description
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.
Affected products
-
- Version 1.1StatusaffectedConstraints-
- Version 1.10StatusaffectedConstraints-
- Version 1.11StatusaffectedConstraints-
- Version 1.2StatusaffectedConstraints-
- Version 1.4StatusaffectedConstraints-
- Version 1.5StatusaffectedConstraints-
- Version 1.6StatusaffectedConstraints-
- Version 1.7StatusaffectedConstraints-
- Version 1.8StatusaffectedConstraints-
- Version 1.9StatusaffectedConstraints-
- Version prior to 1.12.10StatusaffectedConstraints-
- Version prior to 1.13.8StatusaffectedConstraints-
- Version prior to 1.14.4StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Kubernetes | Kubernetes | n/a |
|
- < 1.12.10
- 1.13.0
- 1.13.0
- 1.13.0
- 1.13.0
- 1.13.0
- 1.13.0
- 1.13.0
- 1.13.0
- 1.13.0
- 1.13.0
- 1.13.1
- 1.13.1
- 1.13.2
- 1.13.2
- 1.13.3
- 1.13.3
- 1.13.4
- 1.13.4
- 1.13.5
- 1.13.5
- 1.13.6
- 1.13.6
- 1.13.7
- 1.13.7
- 1.13.8
- 1.14.0
- 1.14.0
- 1.14.0
- 1.14.0
- 1.14.0
- 1.14.0
- 1.14.0
- 1.14.0
- 1.14.0
- 1.14.1
- 1.14.1
- 1.14.2
- 1.14.2
- 1.14.3
- 1.14.3
- 1.14.4
- 1.15.0
- 1.15.0
- 1.15.0
- 1.15.0
- 1.15.0
- 1.15.0
- 1.15.0
- 1.15.0
No data.
Red Hat OpenShift Container Platform 3.10
atomic-openshift
Not affected
Red Hat OpenShift Container Platform 3.11
atomic-openshift
Not affected
Red Hat OpenShift Container Platform 3.9
atomic-openshift
Not affected
Red Hat OpenShift Container Platform 4
openshift
Fix deferred
Red Hat Storage 3
heketi
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat OpenShift Container Platform 3.10 | atomic-openshift | Not affected | n/a |
| Red Hat OpenShift Container Platform 3.11 | atomic-openshift | Not affected | n/a |
| Red Hat OpenShift Container Platform 3.9 | atomic-openshift | Not affected | n/a |
| Red Hat OpenShift Container Platform 4 | openshift | Fix deferred | n/a |
| Red Hat Storage 3 | heketi | Not affected | n/a |
No package ranges for this CVE.
Remediation
Vendor solution
update node configurations to set the "healthzBindAddress" to "127.0.0.1" to prevent access by remote callers.
Red Hat statement
OpenShift Container Platform 3 is not vulnerable to this flaw as the kubelet healthz server is disabled by default. OpenShift Container Platform 4 enables the /debug/pprof endpoint on the kubelet healthz server to local traffic only. There are multiple reasons why this has been rated as moderate by Red Hat. 1. Firstly, even though the endpoint is vulnerable, not all Kubernetes deployments expose the healthz /debug/pprof interface to untrusted networks. Many use network policies or restrict that port to internal or localhost. SUSE’s advisory explicitly notes that the debugging endpoint “is not exposed by the default configuration.” 2. While the biggest impact is confidentiality, theoretical leakage of internal state or memory, there is no integrity or full service takeover.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
AV:N/AC:L/Au:N/C:P/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (32 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 75.06% (0.75060) | 99.50th | v5 (v2026.06.15) |
| Jul 24, 2026 | 75.06% (0.75060) | 99.45th | v5 (v2026.06.15) |
| Jun 15, 2026 | 61.14% (0.61139) | 99.04th | v5 (v2026.06.15) |
| Nov 21, 2025 | 91.48% (0.91485) | 99.64th | v4 (v2025.03.14) |
| Nov 18, 2025 | 78.45% (0.78452) | 99.11th | v4 (v2025.03.14) |
| Mar 30, 2025 | 90.84% (0.90841) | 99.61th | v4 (v2025.03.14) |
| Mar 29, 2025 | 93.29% (0.93293) | 99.79th | v4 (v2025.03.14) |
| Mar 17, 2025 | 90.84% (0.90841) | 99.62th | v4 (v2025.03.14) |
| Jan 19, 2025 | 85.07% (0.85071) | 98.77th | v3 (v2023.03.01) |
| Dec 17, 2024 | 83.61% (0.83608) | 98.68th | v3 (v2023.03.01) |
| Jul 30, 2024 | 62.82% (0.62820) | 97.89th | v3 (v2023.03.01) |
| May 26, 2024 | 60.13% (0.60131) | 97.77th | v3 (v2023.03.01) |
| Apr 22, 2024 | 55.63% (0.55625) | 97.63th | v3 (v2023.03.01) |
| Apr 2, 2024 | 53.51% (0.53513) | 97.57th | v3 (v2023.03.01) |
| Mar 21, 2024 | 55.58% (0.55583) | 97.60th | v3 (v2023.03.01) |
| Feb 17, 2024 | 54.16% (0.54155) | 97.52th | v3 (v2023.03.01) |
| Feb 8, 2024 | 66.26% (0.66259) | 97.79th | v3 (v2023.03.01) |
| Jan 9, 2024 | 69.17% (0.69166) | 97.71th | v3 (v2023.03.01) |
| Nov 7, 2023 | 72.89% (0.72895) | 97.76th | v3 (v2023.03.01) |
| Jul 2, 2023 | 74.83% (0.74826) | 97.69th | v3 (v2023.03.01) |
| Jun 17, 2023 | 78.32% (0.78316) | 97.77th | v3 (v2023.03.01) |
| May 15, 2023 | 82.79% (0.82793) | 97.89th | v3 (v2023.03.01) |
| Apr 27, 2023 | 83.73% (0.83733) | 97.90th | v3 (v2023.03.01) |
| Mar 7, 2023 | 80.03% (0.80033) | 97.72th | v3 (v2023.03.01) |
| Mar 6, 2023 | 62.92% (0.62923) | 98.97th | v2 (v2022.01.01) |
| Aug 4, 2022 | 62.92% (0.62923) | 98.90th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.15% (0.02147) | 78.14th | v2 (v2022.01.01) |
| Feb 4, 2022 | 62.92% (0.62923) | 98.73th | v2 (v2022.01.01) |
| Feb 3, 2022 | 4.49% (0.04486) | 75.02th | v1 |
| Jan 6, 2022 | 4.49% (0.04486) | 74.80th | v1 |
| Sep 1, 2021 | 1.04% (0.01036) | 62.47th | v1 |
| Apr 14, 2021 | 1.04% (0.01036) | 0.00th | v1 |
References (8)
- https://access.redhat.com/security/cve/CVE-2019-11248 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1738368 Issue Tracking
- https://github.com/kubernetes/kubernetes/issues/81023 x_refsource_CONFIRMPatchThird Party Advisory
- https://groups.google.com/d/msg/kubernetes-security-announce/pKELclHIov8/BEDtRELACQAJ mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://groups.google.com/forum/#!topic/kubernetes-security-announce/pKELclHIov8
- https://nvd.nist.gov/vuln/detail/CVE-2019-11248
- https://security.netapp.com/advisory/ntap-20190919-0003/ x_refsource_CONFIRMThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2019-11248
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2019-11248 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1738368 | Issue Tracking | |
| https://github.com/kubernetes/kubernetes/issues/81023 | x_refsource_CONFIRMPatchThird Party Advisory | |
| https://groups.google.com/d/msg/kubernetes-security-announce/pKELclHIov8/BEDtRELACQAJ | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://groups.google.com/forum/#!topic/kubernetes-security-announce/pKELclHIov8 | ||
| https://nvd.nist.gov/vuln/detail/CVE-2019-11248 | ||
| https://security.netapp.com/advisory/ntap-20190919-0003/ | x_refsource_CONFIRMThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2019-11248 |
Change history (0)
No recorded changes yet.