CVE-2023-6021 Ray Log File Local File Include

High 7.5 Published 16 Nov 2023 Updated 27 Nov 2024

Attackers can read arbitrary files on the server via the Ray log API endpoint without authentication, exposing sensitive data.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2023-6021?

CVE-2023-6021 is a high-severity path traversal vulnerability in ray-project/ray, published on 16 Nov 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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

Weakness: CWE-22, CWE-29

Which versions are affected by CVE-2023-6021?

3 open source packages ship an affected version, including ray. It affects 1 product.

Package	Affected	Fixed in
`ray` PyPI	All versions	`2.8.1`
`ray` PyPI	All versions	`2.8.1`
`ray` PyPI	All versions	`2.8.1`

Products include Ray Project Ray.

How do I fix CVE-2023-6021?

Upgrade ray to 2.8.1 or later.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2023-6021 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-6021 exists.

Public exploit code: 1 Nuclei template.

Sources

Also known as GHSA-3pww-qvr8-6mhp, PYSEC-2026-515.