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CVE-2026-50151— oras-go: credential forwarding via unvalidated Location header in blob upload

Quick assessment

Affected
oras-project oras-go
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

oras-project oras-go是oras-project组织的一个基于OCI标准的内容分发库软件。 oras-project oras-go 2.6.1之前版本存在服务端请求伪造漏洞，该漏洞源于在monolithic blob上传过程中跟随registry控制的Location标头并重用Authorization标头，可能导致恶意registry返回跨主机Location并在攻击者控制的端点接收调用者凭据。

CVSS 7.5 · High EPSS 0.38% · P31

Affected Version Matrix 1

VendorProduct Version RangeStatus
oras-project oras-go < 2.6.1 affected
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I. Basic Information for CVE-2026-50151

Vulnerability Information
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Vulnerability Title
oras-go: credential forwarding via unvalidated Location header in blob upload
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
oras-project oras-go 服务端请求伪造漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
oras-project oras-go是oras-project组织的一个基于OCI标准的内容分发库软件。 oras-project oras-go 2.6.1之前版本存在服务端请求伪造漏洞，该漏洞源于在monolithic blob上传过程中跟随registry控制的Location标头并重用Authorization标头，可能导致恶意registry返回跨主机Location并在攻击者控制的端点接收调用者凭据。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
oras-project oras-go < 2.6.1 -

II. Public POCs for CVE-2026-50151

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 11964 chars
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III. Intelligence Information for CVE-2026-50151

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Patches & Fixes for CVE-2026-50151 (2)

Vendor Advisories for CVE-2026-50151 (1)

Vendor Pages for CVE-2026-50151 (1)

Same Patch Batch · oras-project · 2026-07-17 · 4 CVEs total

CVE-2026-50163 7.1 HIGH oras-go: Hardlink entry with relative Linkname escapes extract dir via process CWD resolut
CVE-2026-48978 oras-go: Malicious registry can hijack Bearer token realm to exfiltrate credentials and re
CVE-2026-50162 oras-go: file store write outside workingDir via symlink traversal

IV. Related Vulnerabilities

Same product: oras-go
Same vendor: oras-project
Same weakness: CWE-918