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No exploitation reportedFix available

CVE-2021-23434

No exploitation reported by the sources we read.

  • Published2021-08-27
  • WeaknessCWE-843

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

This affects the package object-path before 0.11.6. A type confusion vulnerability can lead to a bypass of CVE-2020-15256 when the path components used in the path parameter are arrays. In particular, the condition currentPath === '__proto__' returns false if currentPath is ['__proto__']. This is because the === operator returns always false when the type of the operands is different.

Timeline

dates in UTC
  1. 2021-08-2717:15CVE publishedNVD

Versions per branch

NVD · OSV
Debian debian linux
BranchAffectedFixed in
10.0= 10.0no fix published
Object-path project object-path
BranchAffectedFixed in
0.11< 0.11.60.11.6

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • node-object-pathUbuntu:26.10all versions · no fixed version listed
  • node-object-pathUbuntu:26.04:LTSall versions · no fixed version listed
  • node-object-pathUbuntu:25.10all versions · no fixed version listed
  • node-object-pathUbuntu:24.04:LTSall versions · no fixed version listed
  • node-object-pathUbuntu:20.04:LTSall versions · fixed in 0.11.4-2ubuntu0.1
  • node-object-pathUbuntu:18.04:LTSall versions · fixed in 0.11.3-1ubuntu0.1
  • node-object-pathDebian:14all versions · fixed in 0.11.7-1
  • node-object-pathDebian:13all versions · fixed in 0.11.7-1

3 more package ranges on OSV.dev

Vendor advisories

  • CVE-2021-23434 Red Hat Product Security16 known affected

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

    servicemesh-prometheus as a component of OpenShift Service Mesh 1 · servicemesh-prometheus.src as a component of OpenShift Service Mesh 1 · servicemesh-prometheus as a component of OpenShift Service Mesh 2.0 · +13 more

  • RHSA-2022:0856 Red Hat Product Security77 products fixed

    Red Hat Security Advisory: Red Hat Advanced Cluster Management 2.2.11 security updates and bug fixes

  • RHSA-2021:3873 Red Hat Product Security77 products fixed

    Red Hat Security Advisory: Red Hat Advanced Cluster Management 2.2.9 security, bug, and container updates

Full record on NVD

Fix

  1. Vendor fix Red Hat Product Security RHSA-2022:0856 · 77 productsFor Red Hat Advanced Cluster Management for Kubernetes, see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://access.redhat.com/documentation/en-us/red_hat_…
  2. Vendor fix Red Hat Product Security RHSA-2021:3873 · 77 productsBefore applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.2/html-single/install/index#instal…
  3. No fix available, says the vendor Red Hat Product Security CVE-2021-23434 · 9 productsAffected
  4. No fix planned, says the vendor Red Hat Product Security CVE-2021-23434 · 5 productsOut of support scope
  5. No fix planned, says the vendor Red Hat Product Security CVE-2021-23434 · 2 productsWill not fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • CNACVSS 3.15.6known since 2026-10-23
  • NVDCVSS 3.18.6read 2026-10-23
  • NVDCVSS 2.07.5read 2026-10-23
  • NVDweakness (CWE)CWE-843read 2026-10-23
  • FIRST EPSSEPSS score1.9 %2026-11-08
  • OSVaffected packages—
  • GitHub AdvisoriesadvisoryMODERATE2021-08-30

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Published
2021-08-27
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-v39p-96qg-c8rf

Frequently asked questions

What is CVE-2021-23434?

This affects the package object-path before 0.11.6. A type confusion vulnerability can lead to a bypass of CVE-2020-15256 when the path components used in the path parameter are arrays. In particular, the condition currentPath === '__proto__' returns false if currentPath is ['__proto__']. This is because the === operator returns always false when the type of the operands is different.

Is CVE-2021-23434 actively exploited?

Active exploitation of CVE-2021-23434 has not been confirmed. Its EPSS score was 1.9% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-23434?

CVE-2021-23434 has a CVSS v3 base score of 8.6 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H.

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