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Fencer Intel
medium 4.7

CVE-2019-11250 json

Kubernetes client-go logs authorization headers at debug verbosity levels

published 7y ago modified last mo. also GHSA-jmrx-5g74-6v2f , GO-2021-0065 , EUVD-2022-4401

cvss
4.7
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.8%
EPSS 1.8% chance of exploitation in 30 days, percentile 78%
public exploits
0
none known

Summary

The Kubernetes client-go library logs request headers at verbosity levels of 7 or higher. This can disclose credentials to unauthorized users via logs or command output. Kubernetes components (such as kube-apiserver) prior to v1.16.0, which make use of basic or bearer token authentication, and run at high verbosity levels, are affected.

Patch / fix

  • go k8s.io/client-go 0.17.0
  • go k8s.io/kubernetes 1.16.0-beta.1
  • kubernetes kubernetes 1.15.3
  • kubernetes Debian 14, Debian 13, Debian 12 1.17.4-1

debian advisories DEBIAN-CVE-2019-11250

  • openshift openshift 4.1 4.1.27-201912021146.git.0.a40116f.el7
  • openshift openshift 4.1 4.1.27-201912021146.git.0.a40116f.el8_0
  • openshift-clients openshift 4.1 4.1.27-201912021146.git.0.a40116f.el7
  • openshift-clients openshift 4.1 4.1.27-201912021146.git.0.a40116f.el8_0
  • openshift-hyperkube openshift 4.1 4.1.27-201912021146.git.0.a40116f.el7
  • openshift-hyperkube openshift 4.1 4.1.27-201912021146.git.0.a40116f.el8_0
  • openshift-clients-redistributable openshift 4.1 4.1.27-201912021146.git.0.a40116f.el7
  • openshift-clients-redistributable openshift 4.1 4.1.27-201912021146.git.0.a40116f.el8_0

red hat advisories RHSA-2019:4087RHSA-2019:4052

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-11250 updated cvss 4.4

kubernetes: Bearer tokens written to logs at high verbosity levels (>= 7)

  • Red Hat OpenShift Container Platform 3.9 atomic-openshift, atomic-openshift-pod, atomic-openshift-node, atomic-openshift-tests, atomic-openshift-master, atomic-openshift-clients, +8 more Red Hat OpenShift Container Platform 3.10 atomic-openshift, atomic-openshift-pod, atomic-openshift-node, atomic-openshift-tests, atomic-openshift-master, atomic-openshift-clients, +7 more
    affected: no fix available
  • Red Hat OpenShift Container Platform 3.11 atomic-openshift 3.11.157-1.git.0.dfe38da.el7, atomic-openshift-pod 3.11.157-1.git.0.dfe38da.el7, atomic-openshift-node 3.11.157-1.git.0.dfe38da.el7, atomic-openshift-tests 3.11.157-1.git.0.dfe38da.el7, atomic-openshift-master 3.11.157-1.git.0.dfe38da.el7, atomic-openshift-clients 3.11.157-1.git.0.dfe38da.el7, +7 more
    fixed: vendor fix RHSA-2019:4052
  • Red Hat OpenShift Container Platform 4.1 openshift 4.1.27-201912021146.git.0.a40116f.el7, openshift 4.1.27-201912021146.git.0.a40116f.el8_0, openshift-clients 4.1.27-201912021146.git.0.a40116f.el7, openshift-clients 4.1.27-201912021146.git.0.a40116f.el8_0, openshift-hyperkube 4.1.27-201912021146.git.0.a40116f.el7, openshift-hyperkube 4.1.27-201912021146.git.0.a40116f.el8_0, +2 more
    fixed: vendor fix RHSA-2019:4087
  • Red Hat Edge Manager preview flightctl
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.77% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.0 4.7 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 3.5 AV:N/AC:M/Au:S/C:P/I:N/A:N
GitHub 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
go k8s.io/client-go
<0.17.0
0.17.0
go k8s.io/kubernetes
<1.16.0-beta.1
1.16.0-beta.1

Affected products

  • Kubernetes Kubernetes

Classification

Weakness
  • CWE-532 Insertion of Sensitive Information into Log File
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.