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.
CVSS breakdown
CVSS 4.0
Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
Active
Confidentiality (Vulnerable System)
High
Integrity (Vulnerable System)
High
Availability (Vulnerable System)
High
Confidentiality (Subsequent System)
None
Integrity (Subsequent System)
None
Availability (Subsequent System)
None
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected products
- anyscale / ray2.56.0
- Anyscale, Inc / Ray0 – 2.56.0
References
- PATCHhttps://github.com/ray-project/ray/releases/tag/ray-2.56.0
- VENDOR_ADVISORYhttps://github.com/ray-project/ray/security/advisories/GHSA-hhrp-gw25-jr43
- PATCHhttps://github.com/ray-project/ray/pull/63469
- PATCHhttps://github.com/ray-project/ray/pull/63470
- VENDOR_ADVISORYhttps://www.vulncheck.com/advisories/ray-unsafe-deserialization-rce-via-webdataset-reader
Updated 24m ago · 8 sources