A flaw was found in the OpenShift API Server, where it failed to sufficiently protect OAuthTokens by leaking them into the logs when an API…

published 2020-06-12 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-3170

cvss: 7.5; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.1%; EPSS 1.1% chance of exploitation in 30 days, percentile 65%
public exploits: 0; none known

A flaw was found in the OpenShift API Server, where it failed to sufficiently protect OAuthTokens by leaking them into the logs when an API Server panic occurred. This flaw allows an attacker with the ability to cause an API Server error to read the logs, and use the leaked OAuthToken to log into the API Server with the leaked token.

Patch / fix

links 1

github.com/openshift/enhancements#323 pull request

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-2020-10752 updated 2026-04-30 cvss 7.1

openshift/openshift-apiserver: oauthtokens leaked to logs on panic

Red Hat OpenShift Container Platform 3.11 atomic-openshift, atomic-openshift-pod, atomic-openshift-node, atomic-openshift-tests, atomic-openshift-master, atomic-openshift-clients, +7 more Red Hat OpenShift Container Platform 4 openshift4/ose-openshift-apiserver-rhel9
affected: workaround, no fix planned “Ensure the OpenShift API Server logs are kept private”

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

1.07% chance of exploitation in the next 30 days, higher than 65% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	7.5	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	6.0	AV:N/AC:M/Au:S/C:P/I:P/A:P

Affected products

Openshift openshift/openshift-apiserver

Classification

Weakness

CWE-522 Insufficiently Protected Credentials
CWE-532 Insertion of Sensitive Information into Log File

References

github.com /openshift/enhancements/pull/323
patch, third-party-advisory
github.com /openshift/origin/blob/master/vendor/k8s.io/kubernetes/staging/src/k8s.io/apiserver/pkg/server/filters/wrap.go
third-party-advisory

Sources

CVE List CVE-2020-10752
NVD CVE-2020-10752

Fencer Vulns 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.

Summary