Credential disclosure via cross-host upload redirect
Published Jul 17, 2026 · Updated Jul 17, 2026
SSRF in ORAS Project oras-go before 2.6.1 allows remote attackers controlling a registry to disclose client credentials. The blobStore.completePushAfterInitialPost function follows an unvalidated Location header and copies the initial POST Authorization header into the later PUT. Exploitation requires a caller to upload to a malicious registry, which can redirect the credential-bearing request to an attacker-controlled host.
Summary
What happened
SSRF in ORAS Project oras-go before 2.6.1 allows remote attackers controlling a registry to disclose client credentials. The blobStore.completePushAfterInitialPost function follows an unvalidated Location header and copies the initial POST Authorization header into the later PUT. Exploitation requires a caller to upload to a malicious registry, which can redirect the credential-bearing request to an attacker-controlled host.
The record
- CVE
- CVE-2026-50151
- Published
- Jul 17, 2026
- Updated
- Jul 17, 2026
- Vendor
- ORAS Project
- Product
- oras-go
- Classifications
- CWE-918
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 17, 2026CVE publishedPublication date reported by the CVE source.
- Jul 17, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 2.6.1
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- poc.zip local credential-forwarding harnessproof of concept · unverified
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo