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MEDIUM

CVE-2026-28208

CVSS v3

5.9

MEDIUM

EPSS Score

0.8 %

exploit probability, as of 2026-10-16

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • com.github.junrar:junrarMavenall versions · fixed in 7.5.8

Vendor advisories

  • CVE-2026-28208 Red Hat Product Security3 known affected

    com.github.junrar/junrar: Junrar: Remote code execution via path traversal when extracting crafted RAR archives

    junrar as a component of Red Hat Fuse 7 · junrar as a component of Red Hat JBoss Enterprise Application Platform 8 · junrar as a component of Red Hat JBoss Enterprise Application Platform Expansion Pack

Full record on NVD

Description

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.

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Published
2026-02-26
Last Modified
2026-03-02

Frequently asked questions

What is CVE-2026-28208?

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.

Is CVE-2026-28208 actively exploited?

Active exploitation of CVE-2026-28208 has not been confirmed. Its EPSS score was 0.8% on 2026-10-16, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-28208?

CVE-2026-28208 has a CVSS v3 base score of 5.9 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N.

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