CVE-2021-30483: isomorphic-git before 1.8.2 allows Directory Traversal via a crafted repository.

Q: How do I fix CVE-2021-30483?

isomorphic-git: upgrade to 1.8.2. Exact commands for each OS are on this page.

Q: Is CVE-2021-30483 being exploited?

CVE-2021-30483 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-30483 affect?

CVE-2021-30483 affects isomorphic-git. Severity is medium (CVSS 5.3). isomorphic-git before 1.8.2 allows Directory Traversal via a crafted repository.

Q: How urgent is CVE-2021-30483?

Priority 49/100. Public exploit reference; Remotely exploitable, no login, no user action

This week

MEDIUM 5.3REMOTEUPGRADE

CVE-2021-30483 is a medium-severity flaw (CVSS 5.3) affecting isomorphic-git. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.2% (top 18%)
CISA exploited list	No
Weakness	CWE-22
Published	2021-07-30
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: isomorphic-git

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-07-30 14:15 UTCPublished CVE record published
2026-06-17 03:50 UTCUpdated Record last modified

isomorphic-git isomorphic-git UPGRADE

Affected: < 1.8.2

Fixed in: 1.8.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy isomorphic-git || rpm -q isomorphic-git || isomorphic-git --version

2. UPGRADE to 1.8.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade isomorphic-git

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade isomorphic-git

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-30483?

isomorphic-git: upgrade to 1.8.2. Exact commands for each OS are on this page.

Is CVE-2021-30483 being exploited?

CVE-2021-30483 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-30483 affect?

CVE-2021-30483 affects isomorphic-git. Severity is medium (CVSS 5.3). isomorphic-git before 1.8.2 allows Directory Traversal via a crafted repository.

How urgent is CVE-2021-30483?

Priority 49/100. Public exploit reference; Remotely exploitable, no login, no user action

Software pages

Git vulnerabilities

References

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