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Critical

Ray Path Traversal vulnerability

  • Disclosed: 16.11.2023
  • Updated: 11.10.2026 15:17

LFI in Ray's log API endpoint allows attackers to read any file on the server without authentication. The issue is fixed in version 2.8.1+. Ray maintainers response can be found here: https://www.anyscale.com/blog/update-on-ray-cves-cve-2023-6019-cve-2023-6020-cve-2023-6021-cve-2023-48022-cve-2023-48023

Affected software

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PlatformPackageVulnerable versionsFixed in
Python (PyPI) ray < 2.8.1 2.8.1

References

CVSS score 9.3/10
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N
Weakness (CWE)
CWE-22, CWE-29
Platform
Python (PyPI)
Package
ray
Disclosed
16.11.2023
Updated
11.10.2026 15:17

Sources and licenses

OSV / GitHub Advisory Database - PYSEC-2026-515 - PyPA Advisory Database; CC BY 4.0

OSV / GitHub Advisory Database - GHSA-3pww-qvr8-6mhp - CC BY 4.0

Vulnerability history: ray

All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (11) in the archive
Total entries
11
First → latest
11.2023 07.2026
Without a fix
2
Exploited in attacks
1

Severity breakdown

  • Critical 6
  • High 3
  • Medium 2

Disclosures per year

Severity:
  1. Ray: Arbitrary code execution via ray.data.read_webdataset default decoder: pickle.loads(value) and torch.load(weights_only=False)
    High · 8.8 CVE-2026-57516 < 2.56.0 2.56.0
  2. Ray: Remote Code Execution via Parquet Arrow Extension Type Deserialization
    High CVE-2026-41486 >= 2.49.0, < 2.55.0 2.55.0
  3. A path traversal vulnerability was identified in Ray Dashboard (default port 8265) in Ray versions prior to 2.8.1. Due to improper validation and sanitization of user-supplied paths in the static file
    High · 7.5 CVE-2026-32981 < 2.8.1 2.8.1
  4. Ray's New Token Authentication is Disabled By Default
    Critical CVE-2025-34351 <= 2.52.0 no fix
  5. Ray is vulnerable to Critical RCE via Safari & Firefox Browsers through DNS Rebinding Attack
    Critical Exploited in attacks CVE-2025-62593 < 2.52.0 2.52.0
  6. Ray has arbitrary code execution via jobs submission API
    Critical · 9.8 CVE-2023-48022 <= 2.49.2 no fix
  7. Ray Missing Authorization vulnerability
    Critical · 9.3 CVE-2023-6020 < 2.8.1 2.8.1
  8. Ray OS Command Injection vulnerability
    Critical · 9.8 CVE-2023-6019 < 2.8.1 2.8.1
  9. Ray Path Traversal vulnerability this entry
    Critical · 9.3 CVE-2023-6021 < 2.8.1 2.8.1

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