CVE-2026-54604

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Source
https://cve.org/CVERecord?id=CVE-2026-54604
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54604.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-54604
Aliases
  • GHSA-f734-jv98-5677
Downstream
Published
2026-09-17T20:29:15Z
Modified
2026-09-19T14:14:39Z
Severity
  • 5.3 (Medium) CVSS_V4 - 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 CVSS Calculator
Summary
OpenSlide: openslide_read_region() returns uninitialized memory with libtiff 4.7.1
Details

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.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-758",
        "CWE-908"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54604.json"
}
References

Affected packages

Git / github.com/openslide/openslide

Affected ranges

Type
GIT
Repo
https://github.com/openslide/openslide
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
a4f0fb0ec462edcea97ff22288f606ac6cd370f5
Fixed
fe79a9713bef2bfd64bbfefd15704060764b1274
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "4.0.1"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

v0.*
v0.1.0-old
v0.2.0-old
v0.3-old
v0.4-old
v0.4.1-old
v0.4.2
v0.5.0
v1.*
v1.0.0
v1.1.0
v1.1.1
v2.*
v2.0.0
v2.1.0
v2.2.0
v2.2.1
v2.3.0
v2.3.1
v3.*
v3.0.0
v3.0.1
v3.0.2
v3.0.3
v3.1.0
v3.1.1
v3.2.0
v3.2.1
v3.2.2
v3.2.3
v3.2.4
v3.2.5
v3.2.6
v3.3.0
v3.3.1
v3.3.2
v3.3.3
v3.4.0
v3.4.1
v4.*
v4.0.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54604.json"
vanir_signatures 
[
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "239302556952335211217507308528847309767",
                "287723374832341240571237681188526036539",
                "248175912682658039120860112915686100853",
                "86863834445804088791239854667862067756",
                "71057149299920948130474708384264278451",
                "262897401809346557984554807440627366141",
                "263225650461913380440389276763718647747"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-54604-62a4a13e",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/openslide/openslide/commit/a4f0fb0ec462edcea97ff22288f606ac6cd370f5",
        "target": {
            "file": "src/openslide-decode-tiff.c"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "function_hash": "194759915801297227841747064672582395988",
            "length": 888
        },
        "id": "CVE-2026-54604-8d96919e",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/openslide/openslide/commit/a4f0fb0ec462edcea97ff22288f606ac6cd370f5",
        "target": {
            "file": "src/openslide-decode-tiff.c",
            "function": "_openslide_tiff_read_tile"
        }
    }
]
vanir_signatures_modified 
"2026-09-19T14:14:39Z"