CVE-2026-50162
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.
脆弱性の種類
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.
参考情報
- https://github.com/oras-project/oras-go/commit/cc323e564d90c6b5b4bdd71d3c8d2ee2713b37e5
- https://github.com/oras-project/oras-go/releases/tag/v2.6.1
- https://github.com/oras-project/oras-go/security/advisories/GHSA-8xwf-rjm4-xvhv
- https://github.com/oras-project/oras-go/security/advisories/GHSA-8xwf-rjm4-xvhv