Review reviewHigh

CVE-2026-26337

Hyland Alfresco Transformation Service (Enterprise), Alfresco Community (Transform Core), alfresco transform service

Hyland Alfresco Transformation Service allows unauthenticated attackers to achieve both arbitrary file read and server-side request forgery through the absolute path traversal.

CVSS
8.8
EPSS
0.36%
28.5% percentile
CISA KEV
Not listed
Published
2026.02.20
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.36%
Technical severityCVSS 8.8

Vulnerability overview

Hyland Alfresco Transformation Service allows unauthenticated attackers to achieve both arbitrary file read and server-side request forgery through the absolute path traversal.

Affected product and versions

Product
Hyland Alfresco Transformation Service (Enterprise), Alfresco Community (Transform Core), alfresco transform service
Affected versions
< 4.3.0, < 5.3.0, < 4.3, 5.3.0
Fixed versions
4.3, 5.3.0

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Hyland Alfresco Transformation Service (Enterprise), Alfresco Community (Transform Core), alfresco transform service and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/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
CWE
CWE-36