CVE-2026-57516
8.8 · HIGHOverview
CVE-2026-57516 is a high-severity vulnerability affecting anyscale ray. It was published on July 1, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
Ray prior to 2.56.0 contains an unsafe deserialization vulnerability in the WebDataset reader that allows attackers to achieve remote code execution by supplying a malicious tar archive to the read_webdataset() function. The _default_decoder() function in webdataset_datasource.py unconditionally calls pickle.loads() on tar entries with .pkl/.pickle extensions and torch.load() with weights_only=False on .pt/.pth entries, executing arbitrary code inside Ray remote workers on every worker that processes the malicious archive.
Remediation
Check the references section for vendor advisories and patches from anyscale. Update ray to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| anyscale | ray | >= 0, < 2.56.0 | Affected |
References
Frequently Asked Questions
What is CVE-2026-57516?
CVE-2026-57516 is a high-severity vulnerability affecting anyscale ray. It was published on July 1, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).
How severe is CVE-2026-57516?
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-57516?
Check the references section for vendor advisories and patches from anyscale. Update ray to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-57516?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-57516 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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