CVE-2026-41245 Junrar: Path Traversal (Zip-Slip) via Sibling Directory Name Prefix
Attackers can write arbitrary files to sibling directories via crafted RAR archives, potentially leading to code execution or data modification.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-41245?
CVE-2026-41245 is a medium-severity path traversal vulnerability in junrar, published on 20 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Junrar is an open source java RAR archive library. Prior to version 7.5.10, 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. Version 7.5.10 fixes the issue.
Weakness: CWE-22
Which versions are affected by CVE-2026-41245?
2 open source packages ship an affected version, including com.github.junrar:junrar. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
com.github.junrar:junrar Maven | All versions | 7.5.10 |
com.github.junrar:junrar Maven | All versions | 7.5.10 |
Products include Junrar Project Junrar.
How do I fix CVE-2026-41245?
Upgrade com.github.junrar:junrar to 7.5.10 or later.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-41245 being exploited?
There is no known exploitation of CVE-2026-41245 in the wild and no public exploit code.
Other vulnerabilities in junrar
Sources
Also known as ECHO-ec3d-99b8-6cf1, GHSA-hf5p-q87m-crj7, RHLW-2026-ed15c0b8d4d51966.