fix(deps): update module github.com/go-git/go-git/v5 to v5.18.0 [security] - autoclosed

[renovate]

This PR contains the following updates:

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

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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

• https://github.com/go-git/go-git/security/advisories/GHSA-3xc5-wrhm-f963
• https://github.com/advisories/GHSA-3xc5-wrhm-f963

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

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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

• build: Update module github.com/go-git/go-git/v5 to v5.17.1 [SECURITY] (releases/v5.x) by @​go-git-renovate[bot] in #​1941
• dotgit: skip writing pack files that already exist on disk by @​pjbgf in #​1944

⚠️ 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

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[cursor]

Stale comment

Security Review: No Findings

Scope: Dependency update of github.com/go-git/go-git/v5 from v5.17.2 to v5.18.0 (go.mod + go.sum only).

Analysis:

• No new vulnerabilities introduced. The change is limited to a minor version bump of a well-known, widely-used Go Git library. No application code is modified.
• Supply-chain risk: Low. v5.18.0 is a legitimate release published on 2026-04-16 by the official go-git project. Go module checksums in go.sum provide integrity verification.
• Prior CVE coverage already in place. The project was already on v5.17.2, which includes the fixes for CVE-2026-33762 (index v4 panic) and CVE-2026-34165 (idx memory DoS), both patched in v5.17.1. This bump to v5.18.0 maintains that coverage and picks up additional non-security improvements.

No actionable security findings.

  

_{Sent by Cursor Automation: Find vulnerabilities}

[cursor]

Security Review: No Findings

Scope: Dependency update of github.com/go-git/go-git/v5 from v5.17.1 to v5.18.0 (go.mod + go.sum only).

Analysis:

• No new vulnerabilities introduced. The change is limited to a minor version bump of the go-git library. No application code is modified.
• Supply-chain risk: Low. v5.18.0 is a legitimate release published on 2026-04-16 by the official go-git project. Go module checksums in go.sum provide integrity verification.
• Security improvement. This update patches GHSA-3xc5-wrhm-f963 (HTTP authentication credential leak when following redirects during smart-HTTP clone/fetch, CVSS 4.7 Medium). The new version adds followRedirects policy support, defaulting to initial to prevent credential leakage to redirect targets.

No actionable security findings.

  

_{Sent by Cursor Automation: Find vulnerabilities}