CVE-2026-26339

Published: Feb 19, 2026

Modified: Feb 20, 2026

PUBLISHED

CVSS v3.1

9.8

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.

Vendor	Product	Versions
Hyland	Alfresco Transformation Service (Enterprise)	affected `0 - < 4.2.3`
Hyland	Alfresco Community (Transform Core)	affected `0 - < 5.2.4`

Weaknesses (CWE)

CWE-918

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

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

vendor-advisory

patch

https://www.hyland.com/en/solutions/products/alfresco-platform

product

https://www.vulncheck.com/advisories/hyland-alfresco-transformation-service-argument-injection-rce

third-party-advisory

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CVE-2026-26339

Description

Affected Products

Weaknesses (CWE)

CVSS v3.1 Details

References