CVE-2023-32668 Server-side request forgery in n/a

Medium 5.5 Published Updated

Attackers can force LuaTeX to make arbitrary network requests via malicious documents due to unrestricted socket library access by default.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2023-32668?

CVE-2023-32668 is a medium-severity server-side request forgery vulnerability in n/a, published on 11 May 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

LuaTeX before 1.17.0 allows a document (compiled with the default settings) to make arbitrary network requests. This occurs because full access to the socket library is permitted by default, as stated in the documentation. This also affects TeX Live before 2023 r66984 and MiKTeX before 23.5.

Which versions are affected by CVE-2023-32668?

It affects 3 products.

Products include Luatex Project Luatex, Miktex Miktex, Tug Tex Live.

How do I fix CVE-2023-32668?

Upgrade to a fixed version.

Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.

Is CVE-2023-32668 being exploited?

There is no known exploitation of CVE-2023-32668 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2023-32668, GHSA-hm67-jh95-48xh, OESA-2025-2694, UBUNTU-CVE-2023-32668.

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