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CVE-2026-48977 Details

Description

OpenSlide is a C library for reading whole slide image files. From 3.4.1 until 4.0.1, OpenSlide's parse_level0_xml() processing in src/openslide-vendor-ventana.c accepts nonpositive row or column tile counts from a crafted Ventana BIF file. The invalid counts produce attacker-controlled relative memory offsets and allow arbitrary values to be written at those offsets, affecting all supported platforms and configurations and resulting in a crash or potential arbitrary code execution. This issue is fixed in version 4.0.1.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/openslide/openslide/commit/2be88bd782d9fff46de8e56a99baca523e7917b3	[email protected]
https://github.com/openslide/openslide/pull/751	[email protected]
https://github.com/openslide/openslide/releases/tag/v4.0.1	[email protected]
https://github.com/openslide/openslide/security/advisories/GHSA-mxg2-48g7-fmwc	[email protected]

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-123	Write-what-where Condition	[email protected]
CWE-1284	Improper Validation of Specified Quantity in Input	[email protected]
CWE-823	Use of Out-of-range Pointer Offset	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

Date	Action	Recorded By
Sep 18, 2026	CVE Modified	CISA-ADP
Sep 17, 2026	New CVE Received	[email protected]