CVE-2021-1800 Path traversal in Xcode

What is CVE-2021-1800?

CVE-2021-1800 is a medium-severity path traversal vulnerability in Apple Xcode, published on 2 Apr 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

A path handling issue was addressed with improved validation. This issue is fixed in Xcode 12.4. A malicious application may be able to access arbitrary files on the host device while running an app that uses on-demand resources with Xcode.

Which versions are affected by CVE-2021-1800?

It affects 1 product.

Products include Apple Xcode.

How do I fix CVE-2021-1800?

No fix has been published for CVE-2021-1800 yet. Limit exposure of the affected software until one is available.

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

Is CVE-2021-1800 being exploited?

There is no known exploitation of CVE-2021-1800 in the wild and no public exploit code.

Other vulnerabilities in Apple Xcode

• CVE-2025-48384 Git Link Following Exploited High 8.1
• CVE-2014-9390 JGit Improper Input Validation vulnerability Critical 9.8
• CVE-2019-14379 Deserialization of untrusted data in FasterXML jackson-databind Critical 9.8
• CVE-2018-4164 An issue was discovered in certain Apple products. Critical 9.8
• CVE-2016-0746 Use after free in n/a Critical 9.8

All Apple Xcode vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-7h33-2j5m-x48x.