VDB
CVE-2026-48977
CVE-2026-48977
PUBLISHED
CVSS 7.7 HIGH
Reported by GitHub_M · Published September 17, 2026
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.
Risk Scores
CVSS 4.0
7.7
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| openslide | openslide | >= 3.4.1, < 4.0.1 |
| openslide | openslide | >= 3.4.1, < 4.0.1, >= 3.4.1, < 4.0.1 |
Timeline
- Sep 7, 2026 CVE Published
- Sep 18, 2026 EPSS Score
References
- https://github.com/openslide/openslide/security/advisories/GHSA-mxg2-48g7-fmwc x_refsource_CONFIRM
- https://github.com/openslide/openslide/pull/751 x_refsource_MISC
- https://github.com/openslide/openslide/commit/2be88bd782d9fff46de8e56a99baca523e7917b3 x_refsource_MISC
- https://github.com/openslide/openslide/releases/tag/v4.0.1 x_refsource_MISC