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
- Linuxfoundation Oras
- Oras-project Oras-go — versions < 2.6.1
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Mitigation, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
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.