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CVE-2021-23440

32
FAUCET Score

CVE-2021-23440 is a critical type confusion vulnerability in the 'set-value' package (versions before 2.0.1 and between 3.0.0 and 4.0.1), impacting products like Oracle Communications Cloud Native Core Policy. This flaw allows for a bypass of a previous security fix (CVE-2019-10747) when user-supplied array keys are used in the path parameter. With a CVSS score of 9.8 (Critical), it presents a severe risk due to its network-based attack vector, low attack complexity, and high potential for confidentiality, integrity, and availability compromise. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion, indicating awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.0.1CPE matchmatch criteria
cpe:2.3:a:set-value_project:set-value:*:*:*:*:*:node.js:*:*
>= 3.0.0, < 4.0.1CPE matchmatch criteria
cpe:2.3:a:set-value_project:set-value:*:*:*:*:*:node.js:*:*
1.14.0CPE matchmatch criteria
cpe:2.3:a:oracle:communications_cloud_native_core_policy:1.14.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.3HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
3.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.46%
Probability of exploitation in next 30 days
EPSS Percentile
82.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0246 is in the 73rd percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (20)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: set-valueFixed in: 2.0.1
npmpatch availablevia ghsa
Product: set-valueFixed in: 4.0.1
npmpatch availablevia ghsa
Product: set-valueFixed in: 3.0.3
nugetpatch availablevia ghsa
Product: set-value-nugetFixed in: 2.0.0
oraclepatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Data Foundation 4.11 on RHEL8Fixed in: odf4/mcg-core-rhel8:v4.11.0-30
View patch
redhatno patchvia redhat_api
Product: Red Hat Advanced Cluster Management for Kubernetes 2Fixed in: rhacm2/console-header-rhel8
redhatno patchvia redhat_api
Product: OpenShift Service Mesh 2.0Fixed in: servicemesh-grafana
redhatno patchvia redhat_api
Product: OpenShift Service Mesh 2.0Fixed in: servicemesh-prometheus
redhatno patchvia redhat_api
Product: Red Hat Advanced Cluster Management for Kubernetes 2Fixed in: rhacm2/search-api-rhel8
redhatno patchvia redhat_api
Product: Red Hat OpenShift Container Platform 4Fixed in: golang-github-prometheus-prometheus
redhatno patchvia redhat_api
Product: Red Hat OpenShift Container Platform 4Fixed in: openshift4/ose-grafana
redhatend of lifevia redhat_api
Product: Red Hat Advanced Cluster Management for Kubernetes 2Fixed in: rhacm2/mcm-topology-rhel8
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Container Platform 4Fixed in: openshift4/ose-thanos-rhel8
redhatend of lifevia redhat_api
Product: Red Hat OpenShift distributed tracing 2Fixed in: rhosdt/jaeger-all-in-one-rhel8
redhatend of lifevia redhat_api
Product: Red Hat Quay 3Fixed in: quay/quay-rhel8
redhatend of lifevia redhat_api
Product: Logging Subsystem for Red Hat OpenShiftFixed in: openshift-logging/kibana6-rhel8
redhatend of lifevia redhat_api
Product: Red Hat Advanced Cluster Management for Kubernetes 2Fixed in: rhacm2/grc-ui-api-rhel8
redhatend of lifevia redhat_api
Product: Red Hat Advanced Cluster Management for Kubernetes 2Fixed in: rhacm2/mcm-topology-api-rhel8

Vendor Advisories (2)

nugetGHSA-4jqc-8m5r-9rprhigh

Prototype Pollution in set-value

Sep 13, 2021
redhatCVE-2021-23440Moderate

nodejs-set-value: type confusion allows bypass of CVE-2019-10747

Sep 12, 2021

References

github.com / jonschlinkert/set-value/commit/7cf8073bb06bf0c15e08475f9f952823b4576452
PatchThird Party Advisory
github.com / jonschlinkert/set-value/pull/33
PatchThird Party Advisory
snyk.io / vuln/SNYK-JAVA-ORGWEBJARSNPM-1584212
ExploitThird Party Advisory
snyk.io / vuln/SNYK-JS-SETVALUE-1540541
ExploitThird Party Advisory
huntr.dev / bounties/2eae1159-01de-4f82-a177-7478a408c4a2
ExploitThird Party Advisory
oracle.com / security-alerts/cpujan2022.html
PatchThird Party Advisory