How severe is CVE-2021-23448?

CVE-2021-23448 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.

Is CVE-2021-23448 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-23448?

CVE-2021-23448 affects Config-handler Project Config-handler. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-23448?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-23448 published?

CVE-2021-23448 was published on 2021-10-11 and last updated on 2026-06-17.

CVE-2021-23448

CVE-2021-23448 is a medium-severity vulnerability in Config-handler Project Config-handler with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-1321.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 7.5
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1321
Affected product: Config-handler Project Config-handler
Published: 2021-10-11
Last modified: 2026-06-17

Description

All versions of package config-handler are vulnerable to Prototype Pollution when loading config files.

Frequently asked questions

What is CVE-2021-23448?: All versions of package config-handler are vulnerable to Prototype Pollution when loading config files.
How severe is CVE-2021-23448?: CVE-2021-23448 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.
Is CVE-2021-23448 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-23448?: CVE-2021-23448 affects Config-handler Project Config-handler. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-23448?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-23448 published?: CVE-2021-23448 was published on 2021-10-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:config-handler_project:config-handler:1.0.0:*:*:*:*:*:*:*

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