CVE-2026-22187

Bio-Formats versions up to and including 8.3.0 perform unsafe Java deserialization of attacker-controlled memoization cache files (.bfmemo) during image processing. The loci.formats.Memoizer class automatically loads and deserializes memo files associated with images without validation, integrity checks, or trust enforcement. An attacker who can supply a crafted .bfmemo file alongside an image can trigger deserialization of untrusted data, which may result in denial of service, logic manipulation, or potentially remote code execution in environments where suitable gadget chains are present on the classpath.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://docs.openmicroscopy.org/bio-formats/	Release Notes
https://seclists.org/fulldisclosure/2026/Jan/7	Mailing List
https://www.vulncheck.com/advisories/bio-formats-memoizer-unsafe-deserialization-via-bfmemo-cache-files	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:openmicroscopy:bio-formats:*:*:*:*:*:*:*:*

History

26 Feb 2026, 23:36

Type	Values Removed	Values Added
References	~~() https://docs.openmicroscopy.org/bio-formats/ -~~	() https://docs.openmicroscopy.org/bio-formats/ - Release Notes
References	~~() https://seclists.org/fulldisclosure/2026/Jan/7 -~~	() https://seclists.org/fulldisclosure/2026/Jan/7 - Mailing List
References	~~() https://www.vulncheck.com/advisories/bio-formats-memoizer-unsafe-deserialization-via-bfmemo-cache-files -~~	() https://www.vulncheck.com/advisories/bio-formats-memoizer-unsafe-deserialization-via-bfmemo-cache-files - Third Party Advisory
CPE		cpe:2.3:a:openmicroscopy:bio-formats::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.8
First Time		Openmicroscopy Openmicroscopy bio-formats

07 Jan 2026, 21:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-01-07 21:16

Updated : 2026-02-26 23:36

NVD link : CVE-2026-22187

Mitre link : CVE-2026-22187

CVE.ORG link : CVE-2026-22187

JSON object : View

Products Affected

openmicroscopy

bio-formats

CWE

CWE-502

Deserialization of Untrusted Data

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