v5: git: Stop validating symlink target paths#2116
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Pull request overview
This PR reverts symlink target path validation in the worktree filesystem wrapper, aligning behavior with upstream Git and allowing repositories containing symlinks whose targets are absolute paths or contain .. to be checked out successfully (while still enforcing containment via validation of the symlink name / link path).
Changes:
- Stop running
validPathon the symlink target inworktreeFilesystem.Symlink, validating only the link path. - Add a regression test ensuring checkout succeeds and preserves symlink targets that are relative, absolute, or
..-escaping. - Minor whitespace cleanup in
worktree_test.go.
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.
| File | Description |
|---|---|
worktree_fs.go |
Updates symlink creation validation to only constrain the link path, not the target string. |
worktree_test.go |
Adds coverage for checking out symlinks with arbitrary targets (absolute / ..), preventing regressions. |
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The Symlink wrapper was running validPath on both the target and the link. Targets are an opaque string the kernel resolves at use time, so legitimate worktrees commonly contain symlinks pointing to absolute paths or escaping via ... Validating them as worktree paths rejected those checkouts. Containment is enforced on the link name, which is where the wrapper actually controls placement. Assisted-by: Claude Opus 4.7 <noreply@anthropic.com> Signed-off-by: Paulo Gomes <paulo@entire.io> Signed-off-by: Paulo Gomes <pjbgf@linux.com>
hiddeco
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May 12, 2026
chhe
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May 19, 2026
This PR contains the following updates: | Package | Change | [Age](https://docs.renovatebot.com/merge-confidence/) | [Confidence](https://docs.renovatebot.com/merge-confidence/) | |---|---|---|---| | [github.com/go-git/go-git/v5](https://github.com/go-git/go-git) | `v5.19.0` → `v5.19.1` |  |  | --- ### Release Notes <details> <summary>go-git/go-git (github.com/go-git/go-git/v5)</summary> ### [`v5.19.1`](https://github.com/go-git/go-git/releases/tag/v5.19.1) [Compare Source](go-git/go-git@v5.19.0...v5.19.1) #### What's Changed - v5: plumbing: transport/ssh, Shell-quote path by [@​hiddeco](https://github.com/hiddeco) in [#​2068](go-git/go-git#2068) - v5: git: submodule, Fix relative URL resolution by [@​hiddeco](https://github.com/hiddeco) in [#​2070](go-git/go-git#2070) - v5: git: submodule, canonical remote for relative URLs by [@​hiddeco](https://github.com/hiddeco) in [#​2074](go-git/go-git#2074) - v5: git: submodule, error on remote without URLs by [@​hiddeco](https://github.com/hiddeco) in [#​2078](go-git/go-git#2078) - v5: plumbing: format/idxfile, Validate offset64 indices by [@​hiddeco](https://github.com/hiddeco) in [#​2084](go-git/go-git#2084) - v5: \*: Reject malformed variable-length integers by [@​hiddeco](https://github.com/hiddeco) in [#​2092](go-git/go-git#2092) - v5: plumbing: format/packfile, Tighten delta validation by [@​hiddeco](https://github.com/hiddeco) in [#​2091](go-git/go-git#2091) - v5: Add `worktreeFilesystem` wrapper for worktree and hardening by [@​hiddeco](https://github.com/hiddeco) in [#​2100](go-git/go-git#2100) - v5: config: validate submodule names by [@​hiddeco](https://github.com/hiddeco) in [#​2082](go-git/go-git#2082) - build: Update module github.com/go-git/go-git/v5 to v5.19.0 \[SECURITY] (releases/v5.x) by [@​go-git-renovate](https://github.com/go-git-renovate)\[bot] in [#​2111](go-git/go-git#2111) - v5: git: Allow MkdirAll on worktree-root paths by [@​hiddeco](https://github.com/hiddeco) in [#​2117](go-git/go-git#2117) - v5: git: Stop validating symlink target paths by [@​pjbgf](https://github.com/pjbgf) in [#​2116](go-git/go-git#2116) - v5: plumbing: format decoder input bounds and contracts by [@​hiddeco](https://github.com/hiddeco) in [#​2125](go-git/go-git#2125) - plumbing: format/packfile, cap delta chain depth in parser by [@​pjbgf](https://github.com/pjbgf) in [#​2137](go-git/go-git#2137) **Full Changelog**: <go-git/go-git@v5.19.0...v5.19.1> </details> --- ### Configuration 📅 **Schedule**: (UTC) - Branch creation - At any time (no schedule defined) - Automerge - At any time (no schedule defined) 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **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. --- - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box --- This PR has been generated by [Mend Renovate](https://github.com/renovatebot/renovate). <!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0My4xODIuMSIsInVwZGF0ZWRJblZlciI6IjQzLjE4Mi4xIiwidGFyZ2V0QnJhbmNoIjoibWFpbiIsImxhYmVscyI6W119--> Reviewed-on: https://gitea.com/gitea/runner/pulls/980 Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com> Co-authored-by: Renovate Bot <renovate-bot@gitea.com> Co-committed-by: Renovate Bot <renovate-bot@gitea.com>
Maks1mS
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May 20, 2026
This PR contains the following updates: | Package | Type | Update | Change | OpenSSF | |---|---|---|---|---| | [github.com/go-git/go-git/v5](https://github.com/go-git/go-git) | require | patch | `v5.19.0` → `v5.19.1` | [](https://securityscorecards.dev/viewer/?uri=github.com/go-git/go-git) | --- >⚠️ **Warning** > > Some dependencies could not be looked up. Check the [Dependency Dashboard](issues/23) for more information. --- ### Release Notes <details> <summary>go-git/go-git (github.com/go-git/go-git/v5)</summary> ### [`v5.19.1`](https://github.com/go-git/go-git/releases/tag/v5.19.1) [Compare Source](go-git/go-git@v5.19.0...v5.19.1) #### What's Changed - v5: plumbing: transport/ssh, Shell-quote path by [@​hiddeco](https://github.com/hiddeco) in [#​2068](go-git/go-git#2068) - v5: git: submodule, Fix relative URL resolution by [@​hiddeco](https://github.com/hiddeco) in [#​2070](go-git/go-git#2070) - v5: git: submodule, canonical remote for relative URLs by [@​hiddeco](https://github.com/hiddeco) in [#​2074](go-git/go-git#2074) - v5: git: submodule, error on remote without URLs by [@​hiddeco](https://github.com/hiddeco) in [#​2078](go-git/go-git#2078) - v5: plumbing: format/idxfile, Validate offset64 indices by [@​hiddeco](https://github.com/hiddeco) in [#​2084](go-git/go-git#2084) - v5: \*: Reject malformed variable-length integers by [@​hiddeco](https://github.com/hiddeco) in [#​2092](go-git/go-git#2092) - v5: plumbing: format/packfile, Tighten delta validation by [@​hiddeco](https://github.com/hiddeco) in [#​2091](go-git/go-git#2091) - v5: Add `worktreeFilesystem` wrapper for worktree and hardening by [@​hiddeco](https://github.com/hiddeco) in [#​2100](go-git/go-git#2100) - v5: config: validate submodule names by [@​hiddeco](https://github.com/hiddeco) in [#​2082](go-git/go-git#2082) - build: Update module github.com/go-git/go-git/v5 to v5.19.0 \[SECURITY] (releases/v5.x) by [@​go-git-renovate](https://github.com/go-git-renovate)\[bot] in [#​2111](go-git/go-git#2111) - v5: git: Allow MkdirAll on worktree-root paths by [@​hiddeco](https://github.com/hiddeco) in [#​2117](go-git/go-git#2117) - v5: git: Stop validating symlink target paths by [@​pjbgf](https://github.com/pjbgf) in [#​2116](go-git/go-git#2116) - v5: plumbing: format decoder input bounds and contracts by [@​hiddeco](https://github.com/hiddeco) in [#​2125](go-git/go-git#2125) - plumbing: format/packfile, cap delta chain depth in parser by [@​pjbgf](https://github.com/pjbgf) in [#​2137](go-git/go-git#2137) **Full Changelog**: <go-git/go-git@v5.19.0...v5.19.1> </details> --- ### Configuration 📅 **Schedule**: (UTC) - Branch creation - At 12:00 AM through 04:59 AM and 10:00 PM through 11:59 PM, Monday through Friday (`* 0-4,22-23 * * 1-5`) - Only on Sunday and Saturday (`* * * * 0,6`) - Automerge - At any time (no schedule defined) 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **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. --- - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box --- This PR has been generated by [Mend Renovate](https://github.com/renovatebot/renovate). <!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0My4xNzAuMjIiLCJ1cGRhdGVkSW5WZXIiOiI0My4xNzAuMjIiLCJ0YXJnZXRCcmFuY2giOiJtYWluIiwibGFiZWxzIjpbIktpbmQvRGVwZW5kZW5jaWVzIl19--> Reviewed-on: https://altlinux.space/stapler/stplr/pulls/435
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The Symlink wrapper was running validPath on both the target and the link. Targets are an opaque string the kernel resolves at use time, so legitimate worktrees commonly contain symlinks pointing to absolute paths or escaping via "..". Validating them as worktree paths rejected those checkouts. Containment is enforced on the link name, which is where the wrapper actually controls placement.
Reverts 0ae66bd, which added validation on symlink target which does not align with upstream.
Backport of: #2114.
Fixes: #2107.