CVE-2026-28208: Junrar has an arbitrary file write due to backslash Path Traversal bypass in LocalFolderExtractor on Linux/Unix

CVE-2026-28208 · Severity: low · CVSS 3.1 · Published 2026-02-27

Junrar has an arbitrary file write due to backslash Path Traversal bypass in LocalFolderExtractor on Linux/Unix

Technologies: com.github.junrar:junrar (Maven). Vendors: Maven.

Quick answers

Is CVE-2026-28208 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-28208 being exploited in the wild.
How severe is CVE-2026-28208?
Low severity, with a CVSS score of 3.1, published 27 February 2026.
Which products and versions are affected?
com.github.junrar:junrar (Maven) ECOSYSTEM:introduced=0,fixed=7.5.8.
Is there a fix for CVE-2026-28208?
Yes. com.github.junrar:junrar (Maven): upgrade to 7.5.8 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2026-28208?
Check whether you run com.github.junrar:junrar (Maven) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • com.github.junrar:junrar (Maven): upgrade to 7.5.8 or later
    # set com.github.junrar:junrar to 7.5.8 in your pom.xml or build.gradle

Affected products

  • com.github.junrar:junrar (Maven) ECOSYSTEM:introduced=0,fixed=7.5.8

Identifiers

  • CVE-2026-28208
  • GHSA-j273-m5qq-6825

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