CVE-2026-24909 vlt Mishandles Path Sanitization for tar
Attackers can exploit path traversal in vlt tar extraction to read or modify files outside the intended directory.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-24909?
CVE-2026-24909 is a medium-severity path traversal vulnerability in vlt, published on 27 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
vlt before 1.0.0-rc.10 mishandles path sanitization for tar, leading to path traversal during extraction.
Weakness: CWE-23
Which versions are affected by CVE-2026-24909?
2 open source packages ship an affected version, including @vltpkg/tar.
| Package | Affected | Fixed in |
|---|---|---|
@vltpkg/tar npm | All versions | 1.0.0-rc.10 |
@vltpkg/tar npm | All versions | 1.0.0-rc.10 |
How do I fix CVE-2026-24909?
Upgrade @vltpkg/tar to 1.0.0-rc.10 or later.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-24909 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-24909 exists.
Sources
Also known as GHSA-gf2c-jwcj-x929.