CVE-2022-35918: Streamlit directory traversal vulnerability

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-08-01 · updated 2026-06-17
Weakness: CWE-22

Description

Streamlit is a data oriented application development framework for python. Users hosting Streamlit app(s) that use custom components are vulnerable to a directory traversal attack that could leak data from their web server file-system such as: server logs, world readable files, and potentially other sensitive information. An attacker can craft a malicious URL with file paths and the streamlit server would process that URL and return the contents of that file. This issue has been resolved in version 1.11.1. Users are advised to upgrade. There are no known workarounds for this issue.

Affected products

streamlit: from 0.63.0 before 1.11.1 — fixed in 1.11.1

How to fix

Upgrade to a fixed version: streamlit 1.11.1. Check the vendor advisory for mitigations.

References

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