CVE-2026-22187

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 Details

CVSS Score

7.8

Severity

HIGH

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Configurations (Affected Products)

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

Bio-Formats <= 8.3.0

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

PoC代码：构造恶意.bfmemo文件并与图像文件一起提供

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-22187
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-22187
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-22187/
[4] VulDB https://vuldb.com/cve/CVE-2026-22187
[5] https://docs.openmicroscopy.org/bio-formats/
[6] https://seclists.org/fulldisclosure/2026/Jan/7
[7] https://www.vulncheck.com/advisories/bio-formats-memoizer-unsafe-deserialization-via-bfmemo-cache-files

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-22187", "sourceIdentifier": "[email protected]", "published": "2026-01-07T21:16:02.600", "lastModified": "2026-02-26T23:36:40.770", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "Las versiones de Bio-Formats hasta la 8.3.0 inclusive realizan una deserialización Java insegura de archivos de caché de memorización (.bfmemo) controlados por el atacante durante el procesamiento de imágenes. La clase loci.formats.Memoizer carga y deserializa automáticamente archivos memo asociados con imágenes sin validación, comprobaciones de integridad o aplicación de confianza. Un atacante que pueda proporcionar un archivo .bfmemo manipulado junto con una imagen puede desencadenar la deserialización de datos no confiables, lo que puede resultar en denegación de servicio, manipulación lógica o, potencialmente, ejecución remota de código en entornos donde existan cadenas de gadgets adecuadas en el classpath."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "baseScore": 6.8, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "ACTIVE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-502"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:openmicroscopy:bio-formats:*:*:*:*:*:*:*:*", "versionEndIncluding": "8.3.0", "matchCriteriaId": "779C4146-854C-430E-BA48-A8AD79A97ADE"}]}]}], "references": [{"url": "https://docs.openmicroscopy.org/bio-formats/", "source": "[email protected]", "tags": ["Release Notes"]}, {"url": "https://seclists.org/fulldisclosure/2026/Jan/7", "source": "[email protected]", "tags": ["Mailing List"]}, {"url": "https://www.vulncheck.com/advisories/bio-formats-memoizer-unsafe-deserialization-via-bfmemo-cache-files", "source": "[email protected]", "tags": ["Third Party Advisory"]}]}}