CVE-2026-41245
Junrar: Path Traversal (Zip-Slip) via Sibling Directory Name Prefix
Description
### Summary A path traversal vulnerability in `LocalFolderExtractor` allows an attacker to write arbitrary files with attacker-controlled content into sibling directories when a crafted RAR archive is extracted. ### Example Given an extraction directory set to `/tmp/extract`, a crafted archive with an entry with the filename as `../extract_evil/file.txt` would be actually extracted to `/tmp/extract_evil/file.txt`. ### Details The `createDirectory()` and `createFile()` methods in`LocalFolderExtractor` validate extraction paths using a string prefix.
How to fix CVE-2026-41245
To remediate CVE-2026-41245, upgrade the affected package to a fixed version below.
- —upgrade to 7.5.10 or later
Is CVE-2026-41245 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 7.5.10
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N |