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chore(deps): update module github.com/go-git/go-git/v5 to v5.18.0 [security]#559

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xnyo merged 1 commit intomainfrom
renovate/go-github.com-go-git-go-git-v5-vulnerability
Apr 20, 2026
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chore(deps): update module github.com/go-git/go-git/v5 to v5.18.0 [security]#559
xnyo merged 1 commit intomainfrom
renovate/go-github.com-go-git-go-git-v5-vulnerability

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@renovate-sh-app renovate-sh-app Bot commented Apr 17, 2026

This PR contains the following updates:

Package Change Age Confidence
github.com/go-git/go-git/v5 v5.17.1v5.18.0 age confidence

Warning

Some dependencies could not be looked up. Check the warning logs for more information.

GitHub Vulnerability Alerts

GHSA-3xc5-wrhm-f963

Impact

go-git may leak HTTP authentication credentials when following redirects during smart-HTTP clone and fetch operations.

If a remote repository responds to the initial /info/refs request with a redirect to a different host, go-git updates the session endpoint to the redirected location and reuses the original authentication for subsequent requests. This can result in the credentials (e.g. Authorization headers) being sent to an unintended host.

An attacker controlling or influencing the redirect target can capture these credentials and potentially reuse them to access the victim’s repositories or other resources, depending on the scope of the credential.

Clients using go-git exclusively with trusted remotes (for example, GitHub or GitLab), and over a secure HTTPS connection, are not affected by this issue. The risk arises when interacting with untrusted or misconfigured Git servers, or when using unsecured HTTP connections, which is not recommended. Such configurations also expose clients to a broader class of security risks beyond this issue, including credential interception and tampering of repository data.

Patches

Users should upgrade to v5.18.0, or v6.0.0-alpha.2, in order to mitigate this vulnerability. Versions prior to v5 are likely to be affected, users are recommended to upgrade to a supported go-git version.

The patched versions add support for configuring followRedirects. In line with upstream behaviour, the default is now initial, while users can opt into FollowRedirects or NoFollowRedirects programmatically.

Credit

Thanks to the 3 separate reports from @​celinke97, @​N0zoM1z0 and @​AyushParkara. Thanks for finding and reporting this issue privately to the go-git project. 🙇


go-git: Credential leak via cross-host redirect in smart HTTP transport

GHSA-3xc5-wrhm-f963

More information

Details

Impact

go-git may leak HTTP authentication credentials when following redirects during smart-HTTP clone and fetch operations.

If a remote repository responds to the initial /info/refs request with a redirect to a different host, go-git updates the session endpoint to the redirected location and reuses the original authentication for subsequent requests. This can result in the credentials (e.g. Authorization headers) being sent to an unintended host.

An attacker controlling or influencing the redirect target can capture these credentials and potentially reuse them to access the victim’s repositories or other resources, depending on the scope of the credential.

Clients using go-git exclusively with trusted remotes (for example, GitHub or GitLab), and over a secure HTTPS connection, are not affected by this issue. The risk arises when interacting with untrusted or misconfigured Git servers, or when using unsecured HTTP connections, which is not recommended. Such configurations also expose clients to a broader class of security risks beyond this issue, including credential interception and tampering of repository data.

Patches

Users should upgrade to v5.18.0, or v6.0.0-alpha.2, in order to mitigate this vulnerability. Versions prior to v5 are likely to be affected, users are recommended to upgrade to a supported go-git version.

The patched versions add support for configuring followRedirects. In line with upstream behaviour, the default is now initial, while users can opt into FollowRedirects or NoFollowRedirects programmatically.

Credit

Thanks to the 3 separate reports from @​celinke97, @​N0zoM1z0 and @​AyushParkara. Thanks for finding and reporting this issue privately to the go-git project. 🙇

Severity

  • CVSS Score: 4.7 / 10 (Medium)
  • Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N

References

This data is provided by OSV and the GitHub Advisory Database (CC-BY 4.0).


Release Notes

go-git/go-git (github.com/go-git/go-git/v5)

v5.18.0

Compare Source

What's Changed

  • plumbing: transport/http, Add support for followRedirects policy by @​pjbgf in #​2004

Full Changelog: go-git/go-git@v5.17.2...v5.18.0

v5.17.2

Compare Source

What's Changed

⚠️ This release fixes a bug (#​1942) that blocked some users from upgrading to v5.17.1. Thanks @​pskrbasu for reporting it. 🙇

Full Changelog: go-git/go-git@v5.17.1...v5.17.2


Configuration

📅 Schedule: (UTC)

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🚦 Automerge: Enabled.

Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.


  • If you want to rebase/retry this PR, check this box

Need help?

You can ask for more help in the following Slack channel: #proj-renovate-self-hosted. In that channel you can also find ADR and FAQ docs in the Resources section.

…curity]

| datasource | package                     | from    | to      |
| ---------- | --------------------------- | ------- | ------- |
| go         | github.com/go-git/go-git/v5 | v5.17.1 | v5.18.0 |


Signed-off-by: renovate-sh-app[bot] <219655108+renovate-sh-app[bot]@users.noreply.github.com>
@xnyo xnyo merged commit 731cf94 into main Apr 20, 2026
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@xnyo xnyo deleted the renovate/go-github.com-go-git-go-git-v5-vulnerability branch April 20, 2026 09:03
@github-project-automation github-project-automation Bot moved this from 🔬 In review to 🚀 Shipped in Grafana Catalog Team Apr 20, 2026
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