Impact A denial of service (DoS) vulnerability was discovered in go-git versions prior to v5.11. This vulnerability allows an attacker to perform denial of service attacks by providing specially crafted responses from a Git server which triggers resource exhaustion in go-git clients.
Applications using only the in-memory filesystem supported by go-git are not affected by this vulnerability. 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, we recommend limiting its use to only trust-worthy Git servers.
Credit Thanks to Ionut Lalu for responsibly disclosing this vulnerability to us.
References - GHSA-mw99-9chc-xw7r
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.