oras-project oras-go up to 2.6.0 File Path Resolver content/file/file.go resolveWritePath AnnotationTitle symlink

Summaryinfo

A vulnerability has been found in oras-project oras-go up to 2.6.0 and classified as critical. This impacts the function resolveWritePath of the file content/file/file.go of the component File Path Resolver. The manipulation of the argument AnnotationTitle leads to symlink. This vulnerability is traded as CVE-2026-50162. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in oras-project oras-go up to 2.6.0 and classified as critical. This issue affects the function resolveWritePath of the file content/file/file.go of the component File Path Resolver. The manipulation of the argument AnnotationTitle with an unknown input leads to a symlink vulnerability. Using CWE to declare the problem leads to CWE-61. The product, when opening a file or directory, does not sufficiently account for when the file is a symbolic link that resolves to a target outside of the intended control sphere. This could allow an attacker to cause the product to operate on unauthorized files. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-50162 since 06/03/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available.

Upgrading to version 2.6.1 eliminates this vulnerability.

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Productinfo

Type

• Project Management Software

Vendor

• oras-project

Name

• oras-go

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.4
• 2.5
• 2.6.0

Website

• Product: https://github.com/oras-project/oras-go/

CPE 2.3info

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CPE 2.2info

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