HIGH 7.7 NVD
CVE-2026-120752
PyMuPDF 1.25.3 before 2.0 contains a stack-based buffer overflow vulnerability in JM_set_annot_callout_line() that copies a caller-supplied number of callout po
PyMuPDF 1.25.3 before 2.0 contains a stack-based buffer overflow vulnerability in JM_set_annot_callout_line() that copies a caller-supplied number of callout points into a fixed three-element stack array. Attackers who control 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.
References
- https://github.com/pymupdf/PyMuPDF
- https://github.com/pymupdf/PyMuPDF/blob/1.28.2/src/extra.i#L787-L797
- https://github.com/pymupdf/PyMuPDF/commit/d4298ead84ceeae1c9065c81cd9a275a1b092f5e
- https://github.com/pymupdf/PyMuPDF/issues/5112
- https://github.com/pymupdf/PyMuPDF/issues/5173
This high severity vulnerability with a CVSS score of 7.7 was published on 2026-11-02 via NVD.
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