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CVE-2026-26338— Hyland Alfresco Transformation Service SSRF

Quick assessment

Affected
Hyland Alfresco Transformation Service (Enterprise)
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Hyland Alfresco Transformation Service是美国Hyland公司的一个文档转换服务组件。 Hyland Alfresco Transformation Service存在安全漏洞，该漏洞源于文档处理功能存在服务器端请求伪造。

CVSS 9.8 · Critical EPSS 0.67% · P51

Possible ATT&CK Techniques 1 AI

T1187 · Forced Authentication

Affected Version Matrix 2

VendorProduct Version RangeStatus
Hyland Alfresco Community (Transform Core) < 5.3.0 affected
Hyland Alfresco Transformation Service (Enterprise) < 4.3.0 affected
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I. Basic Information for CVE-2026-26338

Vulnerability Information
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Vulnerability Title
Hyland Alfresco Transformation Service SSRF
Source: CVE Program / CVE List V5
Vulnerability Description
Hyland Alfresco Transformation Service allows unauthenticated attackers to achieve server-side request forgery (SSRF) through the document processing functionality.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Hyland Alfresco Transformation Service 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Hyland Alfresco Transformation Service是美国Hyland公司的一个文档转换服务组件。 Hyland Alfresco Transformation Service存在安全漏洞，该漏洞源于文档处理功能存在服务器端请求伪造。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
Hyland Alfresco Transformation Service (Enterprise) 0 ~ 4.3.0 -
Hyland Alfresco Community (Transform Core) 0 ~ 5.3.0 -

II. Public POCs for CVE-2026-26338

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III. Intelligence Information for CVE-2026-26338

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Vendor Advisories for CVE-2026-26338 (1)

Same Patch Batch · Hyland · 2026-02-19 · 4 CVEs total

CVE-2026-26339 9.8 CRITICAL Hyland Alfresco Transformation Service Argument Injection RCE
CVE-2026-26337 8.2 HIGH Hyland Alfresco Transformation Service Absolute Path Traversal Arbitrary File Read and SSR
CVE-2026-26336 7.5 HIGH Hyland Alfresco Improper Authorization Arbitrary File Read

IV. Related Vulnerabilities

Same product: Alfresco Transformation Service (Enterprise)
Same vendor: Hyland
Same weakness: CWE-918

V. Comments for CVE-2026-26338

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