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CVE-2026-48977

OpenSlide: Arbitrary memory write with crafted Ventana BIF file

CVSS 4.0 7.7 HIGHCheck source for fixed versionsKEV status unknown
Original advisory

cve-program · CVE-2026-48977

Published

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.

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Affected versions, risk and source history

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CVE-2026-48977 · CVE overview and exploitation status

cve-program · CVE-2026-48977

Related changes

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Sources read 13 Nov 03:01 UTC · 274 of 275 readable · 272 fully read · documentation 469/469 current

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