Connect your agent
AdvisoriesCriticalCheck your lockfilePluginHow it worksPricing Connect your agent

Advisory record · GHSA-j273-m5qq-6825

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

CVSS 5.9 MediumEPSS 0.15 · 96th percentile

Published by the GitHub Advisory Database at 27 Feb 2026, 22:09 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
com.github.junrar:junrarMaven<7.5.87.5.8
Identifiers
GHSA-j273-m5qq-6825 · CVE-2026-28208
Weakness (CWE)
CWE-22
Tags
Published
27 Feb 2026
Updated
28 Feb 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Junrar, the Java RAR extraction library (Maven com.github.junrar:junrar), is vulnerable in versions before 7.5.8 on Linux and Unix systems. An attacker who supplies a crafted RAR archive for extraction can write attacker-controlled content to arbitrary files outside the destination directory, which may lead to remote code execution. Upgrade to version 7.5.8.

Written 3 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
5.9 Medium 3.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.15, the 96th percentile, on 12 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:21 UTC First seen by agentprime
  2. 31 Oct 2026, 14:21 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.