CVE-2026-50151

oras-go: credential forwarding via unvalidated Location header in blob upload

Published: Jul 17, 2026Updated: Aug 26, 2026 Sources: CVE List NVDCWE-918

7.5HIGH

Description

oras-go is a Go library for managing OCI artifacts. Prior to 2.6.1, registry/remote/repository.go in blobStore.completePushAfterInitialPost follows a registry-controlled Location header during monolithic blob upload and reuses the Authorization header from the initial POST request for the subsequent PUT request, allowing a malicious registry to return a cross-host Location and receive the caller's credentials at an attacker-controlled endpoint. This issue is fixed in version 2.6.1.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:NIntegrity

None

A:NAvailability

None

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Weaknesses

CWE-918

Affected Products

oras-project

oras-go

linuxfoundation

oss-project·USaka everest, pytorch, yocto

orasMixed

AI / ML / ml-framework

Exploitability

Official Patch Available

Workaround Available

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Command and Control

Initial Access

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References

https://github.com/oras-project/oras-go/security/advisories/GHSA-jxpm-75mh-9fp7

github.com

https://github.com/oras-project/oras-go/pull/1152

github.com

https://github.com/oras-project/oras-go/commit/4683c46ef078091544f5f55fd25102f002806991

github.com

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