How severe is CVE-2022-21195?

CVE-2022-21195 has a CVSS 3.x base score of 5.3, 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 none, and availability low.

Is CVE-2022-21195 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-21195?

CVE-2022-21195 affects Url-regex Project Url-regex. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-21195?

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

When was CVE-2022-21195 published?

CVE-2022-21195 was published on 2022-05-20 and last updated on 2026-06-17.

CVE-2022-21195

CVE-2022-21195 is a medium-severity vulnerability in Url-regex Project Url-regex with a CVSS 3.x base score of 5.3. 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-1333.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1333
Affected product: Url-regex Project Url-regex
Published: 2022-05-20
Last modified: 2026-06-17

Description

All versions of package url-regex are vulnerable to Regular Expression Denial of Service (ReDoS) which can cause the CPU usage to crash.

Frequently asked questions

What is CVE-2022-21195?: All versions of package url-regex are vulnerable to Regular Expression Denial of Service (ReDoS) which can cause the CPU usage to crash.
How severe is CVE-2022-21195?: CVE-2022-21195 has a CVSS 3.x base score of 5.3, 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 none, and availability low.
Is CVE-2022-21195 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-21195?: CVE-2022-21195 affects Url-regex Project Url-regex. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-21195?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-21195 published?: CVE-2022-21195 was published on 2022-05-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:url-regex_project:url-regex:*:*:*:*:*:*:*:*

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