CVE-2026-54732 libreoffice-convert: path traversal / arbitrary file write
Attackers can write arbitrary files via path traversal in libreoffice-convert, potentially achieving code execution or privilege escalation.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-54732?
CVE-2026-54732 is a medium-severity path traversal vulnerability in elwerene libreoffice-convert, published on 27 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
libreoffice-convert is a Node.js module for converting office documents to different formats. Prior to 1.8.2, index.js uses the caller-controlled options.fileName value in path.join(tempDir.name, fileName) without reducing it to a base name. A filename containing ../ can escape the temporary directory because path.basename() normalization is missing and write the supplied document buffer to an arbitrary path writable by the process, including an SSH authorized_keys file, a cron configuration, or a web root. This issue is fixed in version 1.8.2.
Weakness: CWE-22
Which versions are affected by CVE-2026-54732?
2 open source packages ship an affected version, including libreoffice-convert.
| Package | Affected | Fixed in |
|---|---|---|
libreoffice-convert npm | All versions | 1.8.2 |
libreoffice-convert npm | All versions | 1.8.2 |
How do I fix CVE-2026-54732?
Upgrade libreoffice-convert to 1.8.2 or later.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-54732 being exploited?
There is no known exploitation of CVE-2026-54732 in the wild and no public exploit code.
Sources
Also known as GHSA-gmxc-r82q-347r.