CVE-2026-50162

Description

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.

Severity (CVSS)

Weaknesses

• CWE-73 — CWE-73: External Control of File Name or Path

Affected products

References

• https://github.com/oras-project/oras-go/security/advisories/GHSA-8xwf-rjm4-xvhv (x_refsource_CONFIRM)
• https://github.com/oras-project/oras-go/commit/cc323e564d90c6b5b4bdd71d3c8d2ee2713b37e5 (x_refsource_MISC)
• https://github.com/oras-project/oras-go/releases/tag/v2.6.1 (x_refsource_MISC)