CVE-2023-32668

Name: CVE-2023-32668
Creator: NVD / NIST
Published: 2023-05-11T06:15:10+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.37%

Last modified Jun 17, 2026

CVE-2023-32668 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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. EPSS estimates a 0.37% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

EPSS Probability

0.37%

29.1th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Luatex Project	Luatex	>= 0.27.0, < 1.17.0
Miktex	Miktex	>= 2.9.0, < 23.5
Tug	Tex Live	>= 2009, < 2023

References

https://gitlab.lisn.upsaclay.fr/texlive/luatex/-/blob/b266ef076c96b382cd23a4c93204e247bb98626a/source/texk/web2c/luatexdir/ChangeLog#L1-L3Release Notes
https://gitlab.lisn.upsaclay.fr/texlive/luatex/-/tags/1.17.0Patch
https://tug.org/pipermail/tex-live/2023-May/049188.htmlIssue Tracking, Mailing List, Mitigation
https://tug.org/~mseven/luatex.html#luasocketExploit, Vendor Advisory
https://gitlab.lisn.upsaclay.fr/texlive/luatex/-/blob/b266ef076c96b382cd23a4c93204e247bb98626a/source/texk/web2c/luatexdir/ChangeLog#L1-L3Release Notes
https://gitlab.lisn.upsaclay.fr/texlive/luatex/-/tags/1.17.0Patch
https://lists.debian.org/debian-lts-announce/2024/10/msg00032.html
https://tug.org/pipermail/tex-live/2023-May/049188.htmlIssue Tracking, Mailing List, Mitigation
https://tug.org/~mseven/luatex.html#luasocketExploit, Vendor Advisory

Timeline

Published: May 11, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-32668?

How severe is CVE-2023-32668?

CVE-2023-32668 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.37% probability of exploitation in the next 30 days.

How do I fix CVE-2023-32668?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-32668?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST