High severity · published Jul 17, 2026
CVE-2026-50151
oras-go: credential forwarding via unvalidated Location header in blob upload
7.5
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 32% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OR
oras-go · oras-project
< 2.6.1 · source: vendor
OR
Oras · Linuxfoundation
before 2.6.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-50151
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-50151
Patch
https://github.com/oras-project/oras-go/commit/4683c46ef078091544f5f55fd25102f002806991
Issue Tracking
https://github.com/oras-project/oras-go/pull/1152
Release Notes
https://github.com/oras-project/oras-go/releases/tag/v2.6.1
Exploit
https://github.com/oras-project/oras-go/security/advisories/GHSA-jxpm-75mh-9fp7
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