SSRF in Linuxfoundation Oras

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.

Vulnerability class: SSRF (Server-Side Request Forgery)

EPSS: 0.004 (31.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-50151?
CVE-2026-50151 is a high-severity vulnerability in Linuxfoundation Oras, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.5/10. Published 2026-07-17.
How severe is CVE-2026-50151?
High severity. CVSS v3 base score is 7.5 out of 10.