CVE-2026-3029
HighCVSS 7.5Exploitation Probability (EPSS)
Low risk28th percentile - higher than 28% of all known CVEs
Summary
A path traversal and arbitrary file write vulnerability exists in PyMuPDF version 1.26.5. The flaw is located in the get function in '_main_.py'.
Risk Assessment
An attacker can exploit this vulnerability to read or write files outside the allowed directory, potentially leading to data leakage or system compromise.
Recommendation
Immediately update PyMuPDF to the latest available version that fixes this vulnerability. Restrict access to applications using this library.
Other vulnerabilities in PyMuPDF
See all- CVE-2026-120752High
PyMuPDF 1.25.3 before 2.0 contains a stack-based buffer overflow in JM_set_annot_callout_line() that copies a caller-supplied number of callout points into a fixed three-element stack array. Attackers controlling the callout argument passed to Page.add_freetext_annot() can supply four or more points to overwrite the stack frame, crashing the process or executing code.
- CVE-2026-82035High
PyMuPDF through 1.28.2, fixed in commit b2c8f3a, contains a path traversal vulnerability in the font branch of extract_objects() in src/__main__.py. The output filename is constructed by joining a document-controlled BaseFont name directly onto the user-supplied output directory without stripping path separators or dot-dot sequences. Attackers can supply a crafted PDF, EPUB, XPS, or FB2 file with a BaseFont name containing encoded path separators that decode to ../ sequences or absolute paths, causing arbitrary file writes outside the intended output directory.
Original NVD description (English source)
A path traversal and arbitrary file write vulnerability exist in the embedded get function in '_main_.py' in PyMuPDF version, 1.26.5.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS