What’s Vulnerable › Vulnerabilities

CVE-2022-21126: Creation of Temporary File in Directory with Insecure Permissions

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-11-29 · updated 2026-06-17
• Weakness: CWE-668

Description

The package com.github.samtools:htsjdk before 3.0.1 are vulnerable to Creation of Temporary File in Directory with Insecure Permissions due to the createTempDir() function in util/IOUtil.java not checking for the existence of the temporary directory before attempting to create it.

Affected products

• com.github.samtools:htsjdk: before 3.0.1 — fixed in 3.0.1

How to fix

Upgrade to a fixed version: com.github.samtools:htsjdk 3.0.1. Check the vendor advisory for mitigations.

References

• https://github.com/samtools/htsjdk/commit/4a4024a97ee3e87096df6ad9b22c8260bd527772
• https://github.com/samtools/htsjdk/pull/1617
• https://security.snyk.io/vuln/SNYK-JAVA-COMGITHUBSAMTOOLS-3149901
• https://github.com/samtools/htsjdk/commit/4a4024a97ee3e87096df6ad9b22c8260bd527772
• https://github.com/samtools/htsjdk/pull/1617
• https://security.snyk.io/vuln/SNYK-JAVA-COMGITHUBSAMTOOLS-3149901

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