CVE-2025-21613: Gopkg.in/src d/go git.v4 Go-git Has An Argument Injection Vulnerability

CRITICAL
Advisory Identifier: GHSA-v725-9546-7q7m
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CVSS 9.8
CWE-88
Published
Advisory Summary

CVE-2025-21613 is a CRITICAL (CVSS 9.8) go-git has an argument injection vulnerability (CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')) affecting Gopkg.in/src d/go git.v4 libraries in the Go ecosystem. The issue involves go-git has an argument injection via the url field. Remediation is available by upgrading affected packages to version 5.13.0.

CVE-2025-21613 at a Glance

CVE Identifier CVE-2025-21613
GHSA Identifier GHSA-v725-9546-7q7m
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
Affected Product Gopkg.in/src d/go git.v4
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 9.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2025-21613

To remediate this vulnerability, upgrade all affected Gopkg.in/src d/go git.v4 dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

gopkg.in/src-d/go-git.v4 fixed: Latest secure release 
Upgrade gopkg.in/src-d/go-git.v4 to Latest secure release
github.com/go-git/go-git/v5 fixed: 5.13.0 
Upgrade github.com/go-git/go-git/v5 to 5.13.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for gopkg.in/src-d/go-git.v4

How to Check if You Are Affected

To determine whether your application is affected by CVE-2025-21613, inspect your project dependencies for Gopkg.in/src d/go git.v4:

inspect dependencies for gopkg.in/src-d/go-git.v4

Analyze the terminal output to locate any version of Gopkg.in/src d/go git.v4 in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 5.13.0), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection'), where the product constructs a string for a command to be executed by a separate component in another control sphere, but it does not properly delimit the intended arguments, options, or switches within that command string. In Gopkg.in/src d/go git.v4, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Impact 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](https://git-scm.com/docs/git-upload-pack). This only happens when the `file` transport protocol is being used, as that is the only protocol that shells out to `git` binaries. ### Affected versions Users running versions of `go-git` from `v4` and above are recommended to upgrade to `v5.13` in order to mitigate this vulnerability. ### Workarounds In cases where a bump to the latest version of `go-git` is not possible, we recommend users to enforce restrict validation rules for values passed in the URL field. ## Credit Thanks to @vin01 for responsibly disclosing this vulnerability to us.

CVE-2025-21613 Affected Gopkg.in/src d/go git.v4 Versions

2 component(s)
Fixed Versions:
5.13.0
Product / Package Ecosystem Affected Versions Fixed Version
gopkg.in/src-d/go-git.v4
golang/gopkg.in/src-d/go-git.v4
Go
≥ 4.0.0
≤ 4.13.1
github.com/go-git/go-git/v5
golang/github.com/go-git/go-git/v5
Go
< 5.13.0
5.13.0

References

GitHub Advisory / Wiki ADVISORY
https://github.com/go-git/go-git/security/advisories/GHSA-v725-9546-7q7m
NVD — CVE-2025-21613 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-21613
Gopkg.in/src d/go git.v4 Source Repository REPOSITORY
https://github.com/go-git/go-git

Frequently Asked Questions

What is CVE-2025-21613?
CVE-2025-21613 is a security vulnerability in Gopkg.in/src d/go git.v4 involving go-git has an Argument Injection via the URL field under CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection').
Which Gopkg.in/src d/go git.v4 versions are affected?
Affected versions include releases prior to 5.13.0 across affected packages: gopkg.in/src-d/go-git.v4, github.com/go-git/go-git/v5.
What version fixes CVE-2025-21613?
Upgrading to 5.13.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is gopkg.in/src-d/go-git.v4 affected?
Yes, gopkg.in/src-d/go-git.v4 is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
Is github.com/go-git/go-git/v5 affected?
Yes, github.com/go-git/go-git/v5 is affected in releases prior to 5.13.0. Upgrade your dependency to 5.13.0 or later.
What is the CVSS score of CVE-2025-21613?
CVE-2025-21613 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2025-21613?
CVE-2025-21613 is classified under CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') (The product constructs a string for a command to be executed by a separate component in another control sphere, but it does not properly delimit the intended arguments, options, or switches within that command string.).
How can I check Go dependencies for CVE-2025-21613?
Run the dependency tree command: 'inspect dependencies for gopkg.in/src-d/go-git.v4'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-v725-9546-7q7m",
  "modified" : "2025-01-06T18:43:12Z",
  "published" : "2025-01-06T16:16:30Z",
  "aliases" : [ "CVE-2025-21613" ],
  "summary" : "go-git has an Argument Injection via the URL field",
  "details" : "### Impact\nAn argument injection vulnerability was discovered in `go-git` versions prior to `v5.13`. \n\nSuccessful exploitation of this vulnerability could allow an attacker to set arbitrary values to [git-upload-pack flags](https://git-scm.com/docs/git-upload-pack). This only happens when the `file` transport protocol is being used, as that is the only protocol that shells out to `git` binaries.\n\n### Affected versions\nUsers running versions of `go-git` from `v4` and above are recommended to upgrade to `v5.13` in order to mitigate this vulnerability.\n\n### Workarounds\nIn cases where a bump to the latest version of `go-git` is not possible, we recommend users to enforce restrict validation rules for values passed in the URL field.\n\n## Credit\nThanks to @vin01 for responsibly disclosing this vulnerability to us.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Clear"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "gopkg.in/src-d/go-git.v4"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.0.0"
      }, {
        "last_affected" : "4.13.1"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/go-git/go-git/v5"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "5.13.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/go-git/go-git/security/advisories/GHSA-v725-9546-7q7m"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-21613"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/go-git/go-git"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-88" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-01-06T16:16:30Z",
    "nvd_published_at" : "2025-01-06T17:15:47Z"
  }
}