CVE-2023-49569: Maliciously crafted Git server replies can lead to path traversal and RCE on go-git clients
Impact A path traversal vulnerability was discovered in go-git versions prior to v5.11. This vulnerability allows an attacker to create and amend files across the filesystem. In the worse case scenario, remote code execution could be achieved. Applications are only affected if they are using the ChrootOS, which is the default when using "Plain" versions of Open and Clone funcs (e.g. PlainClone).
Published Jan 10, 2024 · Updated Jan 6, 2025
Affected packages
github.com/go-git/go-git/v5
- Ecosystem
- Go
- Affected
- >= 5.0.0, < 5.11.0
- Fixed in
- 5.11.0
- Check
go list -m github.com/go-git/go-git/v5
gopkg.in/src-d/go-git.v4
- Ecosystem
- Go
- Affected
- >= 4.0.0, <= 4.13.1
- Fixed in
- No patched version yet
- Check
go list -m gopkg.in/src-d/go-git.v4
Advisory details
From the GitHub Advisory Database (CC BY 4.0).
Impact
A path traversal vulnerability was discovered in go-git versions prior to v5.11. This vulnerability allows an attacker to create and amend files across the filesystem. In the worse case scenario, remote code execution could be achieved.
Applications are only affected if they are using the ChrootOS, which is the default when using "Plain" versions of Open and Clone funcs (e.g. PlainClone). Applications using BoundOS or in-memory filesystems are not affected by this issue. This is a go-git implementation issue and does not affect the upstream git cli.
Patches
Users running versions of go-git from v4 and above are recommended to upgrade to v5.11 in order to mitigate this vulnerability.
Workarounds
In cases where a bump to the latest version of go-git is not possible in a timely manner, we recommend limiting its use to only trust-worthy Git servers.
Credit
Thanks to Ionut Lalu for responsibly disclosing this vulnerability to us.
Credited to bdilalu.
References
How this page is made: the data panel comes from the GitHub Advisory Database, CISA’s KEV catalog, the NVD and FIRST EPSS, and updates twice a day. No analysis has been written for this entry yet. Methodology