How severe is CVE-2021-30483?

CVE-2021-30483 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 low, integrity none, and availability none.

Is CVE-2021-30483 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-30483?

CVE-2021-30483 affects Isomorphic-git. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-30483?

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

When was CVE-2021-30483 published?

CVE-2021-30483 was published on 2021-07-30 and last updated on 2026-06-17.

CVE-2021-30483

CVE-2021-30483 is a medium-severity vulnerability in Isomorphic-git 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-22.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Isomorphic-git
Published: 2021-07-30
Last modified: 2026-06-17

Description

isomorphic-git before 1.8.2 allows Directory Traversal via a crafted repository.

Frequently asked questions

What is CVE-2021-30483?: isomorphic-git before 1.8.2 allows Directory Traversal via a crafted repository.
How severe is CVE-2021-30483?: CVE-2021-30483 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 low, integrity none, and availability none.
Is CVE-2021-30483 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-30483?: CVE-2021-30483 affects Isomorphic-git. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-30483?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-30483 published?: CVE-2021-30483 was published on 2021-07-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:isomorphic-git:isomorphic-git:*:*:*:*:*:*:*:*

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