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HIGH

CVE-2021-23358

CVSS v3

7.2

HIGH

EPSS Score

4.2 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

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

  • underscorenpmfrom 1.3.2 · fixed in 1.12.1

Vendor advisories

  • CVE-2021-23358 Red Hat Product Security275 products fixed · 57 known affected

    nodejs-underscore: Arbitrary code execution via the template function

    rhacm2/grc-ui-rhel8 as a component of Red Hat Advanced Cluster Management for Kubernetes 2 · rhacm2/search-ui-rhel8 as a component of Red Hat Advanced Cluster Management for Kubernetes 2 · grafana as a component of Red Hat Ceph Storage 3

  • RHSA-2026:3406 Red Hat Product Security4 products fixed

    Red Hat Security Advisory: New container image: rhceph-9.0

  • RHSA-2026:2769 Red Hat Product Security262 products fixed

    Red Hat Security Advisory: Red Hat Ceph Storage 7.1 security and bug fix updates

  • RHSA-2026:2737 Red Hat Product Security4 products fixed

    Red Hat Security Advisory: Red Hat Ceph Storage

  • RHSA-2022:6393 Red Hat Product Security2 products fixed

    Red Hat Security Advisory: RHV Manager (ovirt-engine) [ovirt-4.5.2] bug fix and security update

  • RHSA-2021:2865 Red Hat Product Security2 products fixed

    Red Hat Security Advisory: RHV Manager (ovirt-engine) security update [ovirt-4.4.7]

2 more advisories

Full record on NVD

Description

The package underscore from 1.13.0-0 and before 1.13.0-2, from 1.3.2 and before 1.12.1 are vulnerable to Arbitrary Code Injection via the template function, particularly when a variable property is passed as an argument as it is not sanitized.

Technical details

Published
2021-03-29

Frequently asked questions

What is CVE-2021-23358?

The package underscore from 1.13.0-0 and before 1.13.0-2, from 1.3.2 and before 1.12.1 are vulnerable to Arbitrary Code Injection via the template function, particularly when a variable property is passed as an argument as it is not sanitized.

Is CVE-2021-23358 actively exploited?

Active exploitation of CVE-2021-23358 has not been confirmed. Its EPSS score was 4.2% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-23358?

CVE-2021-23358 has a CVSS v3 base score of 7.2 (HIGH severity).

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