How severe is CVE-2026-45571?

CVE-2026-45571 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability low.

Is CVE-2026-45571 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-45571?

CVE-2026-45571 primarily affects Go-git Project Go-git. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-45571?

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

Does CVE-2026-45571 have an EU (EUVD) identifier?

Yes. CVE-2026-45571 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-32544.

When was CVE-2026-45571 published?

CVE-2026-45571 was published on 2026-05-27 and last updated on 2026-06-17.

CVE-2026-45571

CVE-2026-45571 is a medium-severity vulnerability in Go-git Project Go-git with a CVSS 3.x base score of 5.4. 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 5.4)
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-32544
Weakness: CWE-22
Affected product: Go-git Project Go-git
Published: 2026-05-27
Last modified: 2026-06-17

Description

go-git is an extensible git implementation library written in pure Go. Prior to 5.19.1 and 6.0.0-alpha.4, a path validation issue in go-git could allow crafted repository data to affect files outside the intended checkout target, including the repository's .git directory. These validations were introduced in upstream Git years ago, so the vulnerability arose from go-git drifting from those checks. This vulnerability is fixed in 5.19.1 and 6.0.0-alpha.4.

Frequently asked questions

What is CVE-2026-45571?: go-git is an extensible git implementation library written in pure Go. Prior to 5.19.1 and 6.0.0-alpha.4, a path validation issue in go-git could allow crafted repository data to affect files outside the intended checkout target, including the repository's .git directory. These validations were introduced in upstream Git years ago, so the vulnerability arose from go-git drifting from those checks. This vulnerability is fixed in 5.19.1 and 6.0.0-alpha.4.
How severe is CVE-2026-45571?: CVE-2026-45571 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability low.
Is CVE-2026-45571 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-45571?: CVE-2026-45571 primarily affects Go-git Project Go-git. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-45571?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-45571 have an EU (EUVD) identifier?: Yes. CVE-2026-45571 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-32544.
When was CVE-2026-45571 published?: CVE-2026-45571 was published on 2026-05-27 and last updated on 2026-06-17.

References

https://github.com/go-git/go-git/security/advisories/GHSA-crhj-59gh-8x96

Affected products (4)

cpe:2.3:a:go-git_project:go-git:*:*:*:*:*:go:*:*
cpe:2.3:a:go-git_project:go-git:6.0.0:alpha1:*:*:*:go:*:*
cpe:2.3:a:go-git_project:go-git:6.0.0:alpha2:*:*:*:go:*:*
cpe:2.3:a:go-git_project:go-git:6.0.0:alpha3:*:*:*:go:*:*

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