An incorrect access control flaw was found in the operator, openshift-service-mesh/istio-rhel8-operator all versions through 1.1.3.

published 2020-09-16 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-6458

cvss: 8.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.3%; EPSS 1.3% chance of exploitation in 30 days, percentile 70%
public exploits: 0; none known

An incorrect access control flaw was found in the operator, openshift-service-mesh/istio-rhel8-operator all versions through 1.1.3. This flaw allows an attacker with a basic level of access to the cluster to deploy a custom gateway/pod to any namespace, potentially gaining access to privileged service account tokens. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Patch / fix

distros 1 links 1

servicemesh-operator service mesh 1.1 1.1.4-3.el8

red hat advisories RHSA-2020:2795

github.com/maistra/istio-operator#462 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-2020-14306 updated 2025-11-21 cvss 8.8

openshift-service-mesh/istio-rhel8-operator: control plane can deploy gateway image to any namespace

Red Hat OpenShift Service Mesh 1.1 servicemesh-operator 1.1.4-3.el8
fixed: vendor fix RHSA-2020:2795

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

1.30% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	6.5	AV:N/AC:L/Au:S/C:P/I:P/A:P

Affected products

n/a openshift-service-mesh/istio-rhel8-operator

Classification

Weakness

CWE-862 Missing Authorization

References

github.com /maistra/istio-operator/pull/462
patch, third-party-advisory
bugzilla.redhat.com /show_bug.cgi?id=1850380
issue-tracking, third-party-advisory

Sources

CVE List CVE-2020-14306
NVD CVE-2020-14306

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