CVE-2021-3495

mediumpriority · track · 35EPSS 0.010 · 62 %ileEUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.97% (62nd) EPSS
CVSS 6.5 · medium
Is it mine?
9 products
Check your exposure
Who says so?
5 sources
cnnvd · enisa_euvd · osv · nvd

EPSS · scored 2026-10-27

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.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

  • Fixedopenshift-service-mesh/kiali-rhel8-operator@sha256:008c541f7d9e0f690a56f998eadf80f11f26f0ebfc8c5b337e4647c4240883b5_amd64 as a component of OpenShift Service Mesh 2.0redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2021:1544
  • Fixedopenshift-service-mesh/kiali-rhel8-operator@sha256:12df558c629c0d7b1aae727890c8d9825b974bc47a5e38a960f7844832cfdb20_s390x as a component of OpenShift Service Mesh 2.0redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2021:1544
  • Fixedopenshift-service-mesh/kiali-rhel8-operator@sha256:f52afede9a2b48935b87368d402890aad3990d588938aecfa7432a6dfb94e34a_ppc64le as a component of OpenShift Service Mesh 2.0redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2021:1544
02

cvss

Technical severity, 0–10. One row per scoring source.

8.8
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.5–8.8

v2.06.5mediumAV:N/AC:L/Au:S/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 8 · impact 6.4
v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 5.9
v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · OSV
v3.18.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)
v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · Red Hat Product Security US
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-281USCWE-281USCWE-281US
04

affected products (9)

Products and version ranges known to be affected.

05

advisories (3)

Vendor and ecosystem advisories describing this.

  • RHSA-2021:1544Red Hat Security Advisory: Red Hat OpenShift Service Mesh 2.0.4 security update2021-05-11csaf · redhat_csafUS

    An update for openshift-istio-kiali-rhel8-operator-container is now available for OpenShift Service Mesh 2.0. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

  • GHSA-mv55-23xp-3wp8Access control flaw in Kiali2021-06-08ghsa · osvUS

    An incorrect access control flaw was found in the kiali-operator in versions before 1.33.0. 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.

  • GO-2022-0645Access control flaw in Kiali in github.com/kiali/kiali2024-08-21vendor · osvUS

    Access control flaw in Kiali in github.com/kiali/kiali

06

also known as (5)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

cnnvdenisa_euvdosvnvdredhat_csafNVDCVE.orgMITRE
published 2021-06-01modified 2026-06-17
08

references (9)

External citations — patches, advisories, analysis.

scry

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