CVE-2026-54604

OpenSlide is a C library for reading whole slide image files. Prior to 4.0.1, a behavior change in libtiff 4.7.1 causes the indirect TIFF tile path in src/openslide-decode-tiff.c and _openslide_tiff_read_tile() to request a full-height destination for a partial bottom tile row, allowing uninitialized heap memory to enter pixel data returned by openslide_read_region(). A crafted but valid slide can trigger the issue in TIFF-based formats other than Hamamatsu NDPI when a network service renders attacker-provided slides. Successful extraction depends on pixel transparency handling and recompression, OpenSlide with libtiff 4.7.0 or earlier is not affected, and official binary builds 4.0.0.10 and 4.0.0.11 are affected. This issue is fixed in OpenSlide 4.0.1 and official binary build 4.0.0.12.

CVSS

No CVSS.

References

Link	Resource
https://github.com/openslide/openslide-bin/issues/433
https://github.com/openslide/openslide-bin/pull/436
https://github.com/openslide/openslide/commit/a4f0fb0ec462edcea97ff22288f606ac6cd370f5
https://github.com/openslide/openslide/pull/706
https://github.com/openslide/openslide/releases/tag/v4.0.1
https://github.com/openslide/openslide/security/advisories/GHSA-f734-jv98-5677
https://gitlab.com/libtiff/libtiff/-/work_items/791

Configurations

No configuration.

History

17 Sep 2026, 21:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-17 21:17

Updated : 2026-09-23 18:12

NVD link : CVE-2026-54604

Mitre link : CVE-2026-54604

CVE.ORG link : CVE-2026-54604

JSON object : View

Products Affected

No product.

CWE

CWE-758

Reliance on Undefined, Unspecified, or Implementation-Defined Behavior

CWE-908

Use of Uninitialized Resource

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