What’s Vulnerable › Vulnerabilities

CVE-2021-23423: Directory Traversal

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-08-16 · updated 2026-06-17
• Weakness: CWE-22

Description

This affects the package bikeshed before 3.0.0. This can occur when an untrusted source file containing include, include-code or include-raw block is processed. The contents of arbitrary files could be disclosed in the HTML output.

Affected products

• bikeshed: before 3.0.0 — fixed in 3.0.0

How to fix

Upgrade to a fixed version: bikeshed 3.0.0. Check the vendor advisory for mitigations.

References

• https://github.com/tabatkins/bikeshed/commit/b2f668fca204260b1cad28d5078e93471cb6b2dd
• https://snyk.io/vuln/SNYK-PYTHON-BIKESHED-1537647
• https://github.com/tabatkins/bikeshed/commit/b2f668fca204260b1cad28d5078e93471cb6b2dd
• https://snyk.io/vuln/SNYK-PYTHON-BIKESHED-1537647

Get alerted when CVE-2021-23423 or the next vulnerability affects your stack