Is CVE-2021-23518 in the CISA KEV catalog?

No. CVE-2021-23518 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-23518?

CVE-2021-23518 has a CVSS v3 base score of 7.3 (HIGH).

What is the EPSS score for CVE-2021-23518?

CVE-2021-23518 has an EPSS score of 1.94% (78th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-23518?

Upgrade node-cached-path-relative on debian 11 to 1.0.2-1+deb11u1 or later.

CVE & CISA-KEV Catalog

CVE-2021-23518

HIGHEPSS 78th pctl

7.3

CVSS v3

NVD

Description

The package cached-path-relative before 1.1.0 are vulnerable to Prototype Pollution via the cache variable that is set as {} instead of Object.create(null) in the cachedPathRelative function, which allows access to the parent prototype properties when the object is used to create the cached relative path. When using the origin path as __proto__, the attribute of the object is accessed instead of a path. **Note:** This vulnerability derives from an incomplete fix in https://security.snyk.io/vuln/SNYK-JS-CACHEDPATHRELATIVE-72573

CWE-1321

How to fix

Remediation Available

node-cached-path-relativeDebian

Fixed in:1.0.2-1+deb11u1CVE-2021-23518

Fixed in:1.1.0+~1.0.0-1CVE-2021-23518

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityLow

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

Exploit Intelligence

1.94%probability of exploitation in 30 days

78thpercentile

Elevated risk: more likely to be exploited than 78% of all known CVEs.

References

Patch3

Third-Party Advisory1

lists.debian.org

Related Vulnerabilities

Other CWE-1321 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-0230	Critical	9.8	97%	-	-
CVE-2019-11358	Medium	6.1	87%	-	Fix
CVE-2020-7774	High	7.3	69%	-	Fix
CVE-2022-24760	Critical	10.0	49%	-	Fix
CVE-2022-39396	Critical	9.8	39%	-	Fix
CVE-2022-2564	Critical	9.8	33%	-	Fix

Embed a live status badge for CVE-2021-23518

Markdown

[![CVE-2021-23518](https://tridentstack.com/cve/badge/CVE-2021-23518.svg)](https://tridentstack.com/cve/CVE-2021-23518)

HTML

<a href="https://tridentstack.com/cve/CVE-2021-23518"><img src="https://tridentstack.com/cve/badge/CVE-2021-23518.svg" alt="CVE-2021-23518"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.