CVE-2026-26339

EUVD-2026-7801
Hyland Alfresco Transformation Service allows unauthenticated attackers to achieve remote code execution through the argument injection vulnerability, which exists in the document processing functionality.
SSRF
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Affected Products (NVD)
VendorProductVersion
hylandalfresco_transform_service
𝑥
< 4.2.3
hylandalfresco_transform_core
𝑥
< 5.2.4
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://connect.hyland.com/t5/alfresco-blog/security-update-cve-2026-26337-cve-2026-26338-cve-2026-26339/ba-p/496551
https://www.hyland.com/en/solutions/products/alfresco-platform
https://www.vulncheck.com/advisories/hyland-alfresco-transformation-service-argument-injection-rce