CVE-2026-54604

unknown

Assigned by CNA: github_m

Published 2026-09-17 · Modified 2026-09-17

Discuss on Community Propose mitigation

CVSS v3

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CVSS v4 NEW

5.3

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

VIR risk

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Description

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.

Predictions

Exploit likelihood

20%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

Mitigation details

Source: Debian Security Tracker · View original ↗ · DFSG

CVE-2026-54604 NameCVE-2026-54604 SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) Vulnerable and fixed packages The table below lists information on source packages. Source PackageReleaseVersionStatus openslide (PTS)bullseye3.4.1+dfsg-5vulnerable bookworm3.4.1+dfsg-6vulnerable…

CVE-2026-54604

Name	CVE-2026-54604
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
openslide (PTS)	bullseye	3.4.1+dfsg-5	vulnerable
	bookworm	3.4.1+dfsg-6	vulnerable
	trixie	3.4.1+dfsg-7	vulnerable
	forky, sid	3.4.1+dfsg-9	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
openslide	source	experimental	4.0.1+dfsg-1~0exp2
openslide	source	(unstable)	(unfixed)

Notes

[trixie] - openslide <ignored> (Minor issue; only an exploitable issue with behaviour change of libtiff in 4.7.1)
https://github.com/openslide/openslide/security/advisories/GHSA-f734-jv98-5677

Home - Debian Security - Source (Git)

Apply commands

text fix

Notes

[trixie] - openslide <ignored> (Minor issue; only an exploitable issue with behaviour change of libtiff in 4.7.1)https://github.com/openslide/openslide/security/advisories/GHSA-f734-jv98-5677

OS impact

Debian Mixed 5 releases

Version	Status	Fixed in
trixie	Affected	—
sid	Fixed	`4.0.1+dfsg-1`
forky	Fixed	`4.0.1+dfsg-1`
bullseye	Affected	—
bookworm	Affected	—

References

CWEs

CWE-758 CWE-908

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.