Bug 2565416 (CVE-2026-120752) - CVE-2026-120752 PyMuPDF: PyMuPDF: Arbitrary code execution via stack-based buffer overflow in JM_set_annot_callout_line
Summary: CVE-2026-120752 PyMuPDF: PyMuPDF: Arbitrary code execution via stack-based bu...
Keywords:
Status: NEW
Alias: CVE-2026-120752
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-11-02 22:21 UTC by OSIDB Bzimport
Modified: 2026-11-02 22:27 UTC (History)
1 user (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-11-02 22:21:21 UTC 
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.
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