Java
CVE-2026-28208
MEDIUM
GHSA-j273-m5qq-6825
Severity by source
AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Primary rating from GitHub Advisory.
CVSS VectorGitHub Advisory
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Lifecycle Timeline
4Blast Radius
ecosystem impact- 57 maven packages depend on com.github.junrar:junrar (2 direct, 55 indirect)
Ecosystem-wide dependent count for version 7.5.8.
DescriptionGitHub Advisory
Junrar is an open source java RAR archive library. Prior to version 7.5.8, a backslash path traversal vulnerability in LocalFolderExtractor allows an attacker to write arbitrary files with attacker-controlled content anywhere on the filesystem when a crafted RAR archive is extracted on Linux/Unix. This can often lead to remote code execution (e.g., overwriting shell profiles, source code, cron jobs, etc). Version 7.5.8 has a fix for the issue.
AnalysisAI
Junrar versions prior to 7.5.8 contain a path traversal vulnerability in LocalFolderExtractor that allows attackers to write arbitrary files to the filesystem when processing malicious RAR archives on Linux/Unix systems. Public exploit code exists for this vulnerability, which can facilitate remote code execution through file overwrite attacks such as modifying shell profiles or cron jobs. …
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Vulnerability AssessmentAI
| Risk Assessment | CVSS 5.9 (MEDIUM). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | A remote attacker could exploit this vulnerability to write arbitrary files with attacker-controlled content anywhere on the filesyste. |
| Remediation | A vendor patch is available — apply it immediately. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. …
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