medium6.9
CVE-2026-50162
oras-go has file store write outside workingDir via symlink traversal
Impact
oras-go is a Go library for managing OCI artifacts. Prior to 2.6.1, resolveWritePath() in content/file/file.go uses a lexical filepath.Rel check for workingDir and does not account for symlink traversal, so when AllowPathTraversalOnWrite=false an attacker-controlled blob title through ocispec.AnnotationTitle such as out/pwn.txt can follow a workingDir symlink out -> /some/outside/dir and cause pushFile() to create /some/outside/dir/pwn.txt outside workingDir. This issue is fixed in version 2.6.1.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | oras.land/oras-go/v2 | < 2.6.1 | 2.6.1 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-8xwf-rjm4-xvhv
- https://github.com/oras-project/oras-go/security/advisories/GHSA-8xwf-rjm4-xvhv
- https://github.com/oras-project/oras-go/commit/cc323e564d90c6b5b4bdd71d3c8d2ee2713b37e5
- https://github.com/oras-project/oras-go/releases/tag/v2.6.1