Bug 2567075

Summary:	CVE-2026-120752 python-PyMuPDF: PyMuPDF: Arbitrary code execution via stack-based buffer overflow in JM_set_annot_callout_line [fedora-44]
Product:	[Fedora] Fedora	Reporter:	Oleg Sushchenko <osushche>
Component:	python-PyMuPDF	Assignee:	Michael J Gruber <mjg>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	high	Docs Contact:
Priority:	high
Version:	44	CC:	cbm, mjg
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["6a38f7b4-8f5f-4f3d-9d3a-7d8fc28617c8"]}
Fixed In Version:	python-PyMuPDF-1.28.2-2.fc46	Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2026-11-04 20:39:24 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2565416

Description Oleg Sushchenko 2026-11-04 15:57:01 UTC

Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

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.

Comment 1 Fedora Update System 2026-11-04 20:35:24 UTC

FEDORA-2026-4a2913750e (python-PyMuPDF-1.28.2-2.fc46) has been submitted as an update to Fedora 46.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-4a2913750e

Comment 2 Fedora Update System 2026-11-04 20:39:24 UTC

FEDORA-2026-4a2913750e (python-PyMuPDF-1.28.2-2.fc46) has been pushed to the Fedora 46 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 3 Fedora Update System 2026-11-04 21:12:12 UTC

FEDORA-2026-5c698a4358 (python-PyMuPDF-1.28.2-2.fc45) has been submitted as an update to Fedora 45.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-5c698a4358

Comment 4 Fedora Update System 2026-11-04 21:48:44 UTC

FEDORA-2026-c4245c7166 (python-PyMuPDF-1.28.2-2.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-c4245c7166

Comment 5 Fedora Update System 2026-11-05 02:41:51 UTC

FEDORA-2026-5c698a4358 has been pushed to the Fedora 45 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-5c698a4358`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-5c698a4358

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 6 Fedora Update System 2026-11-05 03:11:07 UTC

FEDORA-2026-c4245c7166 has been pushed to the Fedora 44 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-c4245c7166`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-c4245c7166

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.