CVE-2026-3029 CVE-2026-3029
Attackers can exploit a path traversal flaw in PyMuPDF to write arbitrary files, potentially leading to code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-3029?
CVE-2026-3029 is a high-severity path traversal vulnerability in Artifex Software Inc. *PyMuPDF* PyMuPDF, published on 19 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A path traversal and arbitrary file write vulnerability exist in the embedded get function in '_main_.py' in PyMuPDF version, 1.26.5.
Weakness: CWE-22
Which versions are affected by CVE-2026-3029?
3 open source packages ship an affected version, including pymupdf and PyMuPDF.
| Package | Affected | Fixed in |
|---|---|---|
pymupdf PyPI | From 1.26.5 | 1.26.7 |
pymupdf PyPI | From 1.26.5 | 1.26.7 |
PyMuPDF PyPI | From 1.26.5 | 1.26.7 |
Linux distribution packages (1)
python-PyMuPDF openSUSE:Tumbleweed | All versions | 1.27.2.2-1.1 |
How do I fix CVE-2026-3029?
Upgrade pymupdf to 1.26.7 or later.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-3029 being exploited?
There is no known exploitation of CVE-2026-3029 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-3029, GHSA-cxqh-p2w9-fmr7, PYSEC-2026-3001, UBUNTU-CVE-2026-3029, openSUSE-SU-2026:10416-1, openSUSE-SU-2026:20887-1.