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HIGH

CVE-2026-50151

CVSS v3

7.5

HIGH

EPSS Score

0.4 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • oras.land/oras-go/v2Goall versions · fixed in 2.6.1

Vendor advisories

  • CVE-2026-50151 Red Hat Product Security36 products fixed · 30 known affected

    oras-go: oras-go: Credential forwarding via unvalidated Location header during blob upload

    openshift-service-mesh/istio-rhel9-operator as a component of OpenShift Service Mesh 3 · advanced-cluster-security/rhacs-main-rhel9 as a component of Red Hat Advanced Cluster Security 4 · advanced-cluster-security/rhacs-rhel9-operator as a component of Red Hat Advanced Cluster Security 4

  • RHSA-2026:73419 Red Hat Product Security4 products fixed

    Red Hat Security Advisory: Multicluster Global Hub 1.6.6 security update

  • RHSA-2026:73038 Red Hat Product Security4 products fixed

    Red Hat Security Advisory: Multicluster Global Hub 1.8.2 security update

  • RHSA-2026:71597 Red Hat Product Security4 products fixed

    Red Hat Security Advisory: Multicluster Global Hub 1.5.8 security update

  • RHSA-2026:68515 Red Hat Product Security4 products fixed

    Red Hat Security Advisory: Multicluster Global Hub 1.8.2 security update

  • RHSA-2026:67842 Red Hat Product Security4 products fixed

    Red Hat Security Advisory: Multicluster Global Hub 1.7.3 security update

2 more advisories

Full record on NVD

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.

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Published
2026-07-17
Last Modified
2026-07-17

Frequently asked questions

What is CVE-2026-50151?

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.

Is CVE-2026-50151 actively exploited?

Active exploitation of CVE-2026-50151 has not been confirmed. Its EPSS score was 0.4% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-50151?

CVE-2026-50151 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

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