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CVE-2021-23434

28
FAUCET Score

CVE-2021-23434 is a type confusion vulnerability in the object-path package prior to version 0.11.6, affecting products like Debian Linux. This flaw allows for a bypass of a previous vulnerability (CVE-2020-15256) when array-based path components are used, as the strict equality operator fails to correctly identify the "__proto__" string. With a CVSS score of 8.6 (HIGH), it presents a network-exploitable, low-complexity attack that can lead to low confidentiality and integrity impacts, but a high availability impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.11.6CPE matchmatch criteria
cpe:2.3:a:object-path_project:object-path:*:*:*:*:*:node.js:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.6MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
2.2
Impact Score
3.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.90%
Probability of exploitation in next 30 days
EPSS Percentile
77.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0190 is in the 61st percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (12)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: object-pathFixed in: 0.11.6
redhatpatch availablevia redhat_api
Product: Red Hat Advanced Cluster Management for Kubernetes 2.3 for RHEL 8Fixed in: rhacm2/console-api-rhel8:v2.3.3-6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Advanced Cluster Management for Kubernetes 2.3 for RHEL 8Fixed in: rhacm2/grc-ui-api-rhel8:v2.3.3-5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Advanced Cluster Management for Kubernetes 2.3 for RHEL 8Fixed in: rhacm2/search-ui-rhel8:v2.3.3-7
View patch
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/application-ui-rhel8
redhatno patchvia redhat_api
Product: Red Hat Advanced Cluster Management for Kubernetes 2Fixed in: rhacm2/grc-ui-rhel8
redhatno patchvia redhat_api
Product: Red Hat Advanced Cluster Management for Kubernetes 2Fixed in: rhacm2/mcm-topology-api-rhel8
redhatno patchvia redhat_api
Product: Red Hat Advanced Cluster Management for Kubernetes 2Fixed in: rhacm2/search-api-rhel8
redhatend of lifevia redhat_api
Product: Service Telemetry Framework 1.2 for RHEL 8Fixed in: stf/service-telemetry-rhel8-operator
redhatend of lifevia redhat_api
Product: Service Telemetry Framework 1.2 for RHEL 8Fixed in: stf/smart-gateway-rhel8-operator

Vendor Advisories (2)

npmGHSA-v39p-96qg-c8rfmedium

Prototype Pollution in object-path

Sep 1, 2021
redhatCVE-2021-23434Moderate

object-path: Type confusion vulnerability can lead to a bypass of CVE-2020-15256

Aug 27, 2021

References

github.com / mariocasciaro/object-path%230116
Broken Link
github.com / mariocasciaro/object-path/commit/7bdf4abefd102d16c163d633e8994ef154cab9eb
PatchThird Party Advisory
lists.debian.org / debian-lts-announce/2023/01/msg00031.html
Mailing ListThird Party Advisory
snyk.io / vuln/SNYK-JAVA-ORGWEBJARSNPM-1570423
ExploitThird Party Advisory
snyk.io / vuln/SNYK-JS-OBJECTPATH-1569453
ExploitThird Party Advisory