How severe is CVE-2025-21613?

CVE-2025-21613 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-21613 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-2025-21613?

CVE-2025-21613 affects Go-git Project Go-git. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-21613?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2025-21613 have an EU (EUVD) identifier?

Yes. CVE-2025-21613 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-0045.

When was CVE-2025-21613 published?

CVE-2025-21613 was published on 2025-01-06 and last updated on 2026-06-17.

CVE-2025-21613

CVE-2025-21613 is a critical-severity vulnerability in Go-git Project Go-git with a CVSS 3.x base score of 9.8. 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-88.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 9.2
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-0045
Weakness: CWE-88
Affected product: Go-git Project Go-git
Published: 2025-01-06
Last modified: 2026-06-17

Description

go-git is a highly extensible git implementation library written in pure Go. An argument injection vulnerability was discovered in go-git versions prior to v5.13. Successful exploitation of this vulnerability could allow an attacker to set arbitrary values to git-upload-pack flags. This only happens when the file transport protocol is being used, as that is the only protocol that shells out to git binaries. This vulnerability is fixed in 5.13.0.

Frequently asked questions

What is CVE-2025-21613?: go-git is a highly extensible git implementation library written in pure Go. An argument injection vulnerability was discovered in go-git versions prior to v5.13. Successful exploitation of this vulnerability could allow an attacker to set arbitrary values to git-upload-pack flags. This only happens when the file transport protocol is being used, as that is the only protocol that shells out to git binaries. This vulnerability is fixed in 5.13.0.
How severe is CVE-2025-21613?: CVE-2025-21613 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-21613 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-2025-21613?: CVE-2025-21613 affects Go-git Project Go-git. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-21613?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-21613 have an EU (EUVD) identifier?: Yes. CVE-2025-21613 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-0045.
When was CVE-2025-21613 published?: CVE-2025-21613 was published on 2025-01-06 and last updated on 2026-06-17.

References

https://github.com/go-git/go-git/security/advisories/GHSA-v725-9546-7q7m

Affected products (1)

cpe:2.3:a:go-git_project:go-git:*:*:*:*:*:go:*:*

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