CVE-2026-26339

Critical

Description

Hyland Alfresco Transformation Service allows unauthenticated attackers to achieve remote code execution through the argument injection vulnerability, which exists in the document processing functionality.

SeverityCritical

CVSS9.8

Exploit probability—

ProductHyland Alfresco Transform Service

PublishedFeb 19, 2026

First seenFeb 19, 2026

Weakness typeCWE-918Server-side request forgery (SSRF)

How to fix

Update

hyland alfresco_transform_service4.2.3 or later
hyland alfresco_transform_core5.2.4 or later

Patches

connect.hyland.com/t5/alfresco-blog/security-update-cve-2026-26337-cve-2026-26338-cve-2026-26339/ba-p/496551

Affected products

Product	Affected versions	Fixed in
hyland alfresco_transform_service	v < 4.2.3	4.2.3
hyland alfresco_transform_core	v < 5.2.4	5.2.4

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