oras-project oras-go up to 2.6.1 registry/remote/utils.go parseLink server-side request forgery

Summaryinfo

A vulnerability categorized as problematic has been discovered in oras-project oras-go up to 2.6.1. This issue affects the function parseLink of the file registry/remote/utils.go. Executing a manipulation can lead to server-side request forgery. This vulnerability is handled as CVE-2026-85732. The attack can be executed remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in oras-project oras-go up to 2.6.1. This vulnerability affects the function parseLink of the file registry/remote/utils.go. The manipulation with an unknown input leads to a server-side request forgery vulnerability. The CWE definition for the vulnerability is CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. As an impact it is known to affect confidentiality. CVE summarizes:

oras-go is a Go library for managing OCI artifacts. Prior to 2.6.2, the parseLink function in registry/remote/utils.go accepts an absolute URL from a registry-controlled Link response header without validating its scheme, host, or port. Tags, Referrers, and Repositories pagination operations then issue a GET request to the attacker-selected URL from the victim's network, allowing blind server-side request forgery against internal services. The response body is not returned to the attacker, but timing and error differences can reveal service reachability, and credentials may be attached when the credential store has an entry for the target host. Exploitation requires a victim to perform a pagination-based listing operation against a malicious registry. The maintainer identifies this report as a duplicate of GHSA-3hr5-mjrr-hfjh and states that remediation is consolidated in that earlier advisory. The consolidated issue is fixed in version 2.6.2.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-85732 since 09/04/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

Upgrading to version 2.6.2 eliminates this vulnerability.

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Productinfo

Type

• Project Management Software

Vendor

• oras-project

Name

• oras-go

Version

• 2.6.0
• 2.6.1

Website

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

CPE 2.3info

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CPE 2.2info

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