CVE-2026-22187
HIGH
GHSA-qjm3-cvp9-3jj3
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Lifecycle Timeline
2Description
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.
Analysis
Unsafe deserialization in Bio-Formats up to version 8.3.0 allows local attackers to execute arbitrary code or cause denial of service by crafting malicious .bfmemo cache files that are automatically loaded during image processing without validation. The Memoizer class deserializes untrusted data from these files, enabling potential remote code execution if suitable Java gadget chains are available on the classpath. …
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Remediation
Within 7 days: Identify all affected systems and apply vendor patches promptly. Restrict deserialization to trusted data sources and implement integrity checks.
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External POC / Exploit Code
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