Vulnerability Description
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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openmicroscopy | Bio-Formats | <= 8.3.0 |
Related Weaknesses (CWE)
References
- https://docs.openmicroscopy.org/bio-formats/Release Notes
- https://seclists.org/fulldisclosure/2026/Jan/7Mailing List
- https://www.vulncheck.com/advisories/bio-formats-memoizer-unsafe-deserializationThird Party Advisory
FAQ
What is CVE-2026-22187?
CVE-2026-22187 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 aut...
How severe is CVE-2026-22187?
CVE-2026-22187 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-22187?
Check the references section above for vendor advisories and patch information. Affected products include: Openmicroscopy Bio-Formats.