How severe is CVE-2021-3189?

CVE-2021-3189 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-3189 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-3189?

CVE-2021-3189 affects Google Slashify. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-3189?

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

When was CVE-2021-3189 published?

CVE-2021-3189 was published on 2021-02-19 and last updated on 2026-06-17.

CVE-2021-3189

CVE-2021-3189 is a medium-severity vulnerability in Google Slashify with a CVSS 3.x base score of 6.1. 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-601.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 5.8
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-601
Affected product: Google Slashify
Published: 2021-02-19
Last modified: 2026-06-17

Description

The slashify package 1.0.0 for Node.js allows open-redirect attacks, as demonstrated by a localhost:3000///example.com/ substring.

Frequently asked questions

What is CVE-2021-3189?: The slashify package 1.0.0 for Node.js allows open-redirect attacks, as demonstrated by a localhost:3000///example.com/ substring.
How severe is CVE-2021-3189?: CVE-2021-3189 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-3189 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-3189?: CVE-2021-3189 affects Google Slashify. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-3189?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-3189 published?: CVE-2021-3189 was published on 2021-02-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:google:slashify:1.0.0:*:*:*:*:node.js:*:*

Other CWE-601 (Open Redirect) vulnerabilities

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CVE-2024-22891 — Critical (CVSS 9.8): Nteract v.0.28.0 was discovered to contain a remote code execution (RCE) vulnerability via the Markdown link.

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