CVE-2026-48977

Severity not reported

Data quality: awaiting analysis. NVD has not completed analysis, so CVSS and affected-product data may be missing or change.

OpenSlide is a C library for reading whole slide image files.

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.

CVSS

—

Awaiting analysis by NVD

Timeline (UTC)

Published: 2026-09-17 21:17

Modified: 2026-09-23 18:12

NVD status: Awaiting Analysis

Last synced 2 days ago

Verified against the source API 2026-10-27 06:54 UTC

Exploitation

Not listed in CISA KEV (as of last catalog sync)

Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

Not reported by the source (unknown — not "none").

Weakness classification (CWE)

CWE-123 CWE-823 CWE-1284

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

No vendor advisory or patch reference tagged by NVD. Check the references below.

References

https://github.com/openslide/openslide/commit/2be88bd782d9fff46de8e56a99baca523e7917b3 security-advisories@github.com
https://github.com/openslide/openslide/pull/751 security-advisories@github.com
https://github.com/openslide/openslide/releases/tag/v4.0.1 security-advisories@github.com
https://github.com/openslide/openslide/security/advisories/GHSA-mxg2-48g7-fmwc security-advisories@github.com

Data sources

NVD CVE API 2.0 — fetched 2026-10-27 06:54 UTC · record ↗

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