CVE-2021-3495

Name: CVE-2021-3495
Creator: NVD / NIST
Published: 2021-06-01T14:15:10.303+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.97%

Last modified Jun 17, 2026

CVE-2021-3495 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. An incorrect access control flaw was found in the kiali-operator in versions before 1.33.0 and before 1.24.7. This flaw allows an attacker with a basic level of access to the cluster (to deploy a kiali operand) to use this vulnerability and deploy a given image to anywhere in the cluster, potentially gaining access to privileged service account tokens. EPSS estimates a 0.97% chance of exploitation in the next 30 days.

Description

An incorrect access control flaw was found in the kiali-operator in versions before 1.33.0 and before 1.24.7. This flaw allows an attacker with a basic level of access to the cluster (to deploy a kiali operand) to use this vulnerability and deploy a given image to anywhere in the cluster, 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.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.97%

57.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-281

Affected Software

Vendor	Product	Versions
Netlify	Kiali-Operator	< 1.24.7
Netlify	Kiali-Operator	>= 1.30.0, < 1.33.0
Redhat	Openshift Service Mesh	1.0
Redhat	Openshift Service Mesh	2.0

References

https://bugzilla.redhat.com/show_bug.cgi?id=1947361Issue Tracking, Patch, Third Party Advisory
https://kiali.io/news/security-bulletins/kiali-security-003/Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1947361Issue Tracking, Patch, Third Party Advisory
https://kiali.io/news/security-bulletins/kiali-security-003/Vendor Advisory

Timeline

Published: Jun 1, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-3495?

How severe is CVE-2021-3495?

CVE-2021-3495 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.97% probability of exploitation in the next 30 days.

How do I fix CVE-2021-3495?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-3495?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST