# CVE-2026-45570: go-git command injection in SSH transport via improper path escaping

Source: https://junglewise.ai/threats/cve-2026-45570-go-git-command-injection-in-ssh-transport-via-improper-path  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-05-27. Updated: 2026-05-27  
License: CC BY 4.0 with a link back

CVE-2026-45570 · Severity: medium · CVSS 4 · Published 2026-05-27

go-git is a software library used by developers to integrate Git functionality into Go applications. A security flaw in how the library handles SSH connections could allow a specially crafted repository path to execute unintended commands on certain server configurations. This could lead to unauthorized command execution or minor data manipulation on servers that use a shell to process Git commands.

Technologies: [github.com/go-git/go-git (Go)](https://junglewise.ai/threats/technologies/github-com-go-git-go-git), [github.com/go-git/go-git/v5 (Go)](https://junglewise.ai/threats/technologies/github-com-go-git-go-git-v5), [github.com/go-git/go-git/v6 (Go)](https://junglewise.ai/threats/technologies/github-com-go-git-go-git-v6), [Go-Git](https://junglewise.ai/threats/technologies/go-git). Vendors: [Go](https://junglewise.ai/threats/vendors/go), [Go-Git](https://junglewise.ai/threats/vendors/go-git).

## Quick answers

**Is CVE-2026-45570 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-45570 being exploited in the wild.

**How severe is CVE-2026-45570?** Medium severity, with a CVSS score of 4, published 27 May 2026.

**Which products and versions are affected?** github.com/go-git/go-git (Go) <= 4.7.0, SEMVER:introduced=0, SEMVER:introduced=0,last_affected=4.7.0; github.com/go-git/go-git/v5 (Go) <= 5.19.0, SEMVER:introduced=0,fixed=5.19.1; github.com/go-git/go-git/v6 (Go) <= 6.0.0-alpha.3, SEMVER:introduced=0,fixed=6.0.0-alpha.4; Go-Git <= 5.19.0.

**Is there a fix for CVE-2026-45570?** Yes. github.com/go-git/go-git/v5 (Go): upgrade to 5.19.1 or later; github.com/go-git/go-git/v6 (Go): upgrade to 6.0.0-alpha.4 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-45570 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-45570?** Check whether you run github.com/go-git/go-git (Go), github.com/go-git/go-git/v5 (Go), github.com/go-git/go-git/v6 (Go) or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- github.com/go-git/go-git/v5 (Go): upgrade to 5.19.1 or later

  ```sh
  go get github.com/go-git/go-git/v5@v5.19.1
  ```

- github.com/go-git/go-git/v6 (Go): upgrade to 6.0.0-alpha.4 or later

  ```sh
  go get github.com/go-git/go-git/v6@v6.0.0-alpha.4
  ```


## Technical details

The vulnerability exists in go-git's SSH transport implementation due to improper neutralisation of special elements within a repository path (CWE-116). When constructing the remote execution command, the library wraps the path in single quotes but fails to escape single quotes already present in the path string. An attacker can provide a repository path containing a single quote to break out of the quoted string and append arbitrary shell tokens. This is exploitable against SSH servers that evaluate the execution command through a shell (e.g., /bin/bash or ForceCommand wrappers). Servers using git-shell or those that tokenize commands without shell evaluation are not affected. The fix implements proper shell-quoting parity with canonical Git.

## Affected products

- go-git go-git/v5 <= 5.19.0
- go-git go-git/v6 <= 6.0.0-alpha.3

## Identifiers

- CVE-2026-45570
- GHSA-m7cr-m3pv-hgrp
- GO-2026-5496

## Timeline

- 2026-05-18: advisory: GitHub Security Advisory published
- 2026-05-27: disclosed: CVE published to NVD

## References

- [https://github.com/go-git/go-git/security/advisories/GHSA-m7cr-m3pv-hgrp](https://github.com/go-git/go-git/security/advisories/GHSA-m7cr-m3pv-hgrp)

## Related threats

- [go-git path traversal via malicious reference names](https://junglewise.ai/threats/cve-2026-71557-go-git-path-traversal-via-malicious-reference-names)
- [go-git symlink traversal in worktree operations](https://junglewise.ai/threats/cve-2026-71556-go-git-symlink-traversal-in-worktree-operations)
- [GO-2026-5693 - Go-git: Malformed Git object data may cause panics or resource exhaustion in github.com/go-git/go-git](https://junglewise.ai/threats/go-2026-5693-go-git-malformed-git-object-data-may-cause-panics-or-9c82fa09)
- [go-git go-billy denial of service via improper input handling](https://junglewise.ai/threats/cve-2026-44740-go-git-go-billy-denial-of-service-via-improper-input-handling)
- [go-git DoS via malformed Git object data](https://junglewise.ai/threats/go-git-dos-via-malformed-git-object-data-a3075e9b)