Hyland Alfresco Transformation Service Absolute Path Traversal Arbitrary File Read and SSRF
Priority MEDIUM 44CWE-36Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- High · Low · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
Hyland Alfresco Transformation Service allows unauthenticated attackers to achieve both arbitrary file read and server-side request forgery through the absolute path traversal.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00407 35th percentileScored 2026-11-07
Fix Fixed Alfresco Transformation Service (Enterprise) (Hyland): 4.3.0Alfresco Community (Transform Core) (Hyland): 5.3.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Hyland | Alfresco Transformation Service (Enterprise) | before 4.3.0 | 4.3.0 | Patch available | CNA |
| Hyland | Alfresco Community (Transform Core) | before 5.3.0 | 5.3.0 | Patch available | CNA |
- Alfresco Transformation Service (Enterprise) VendorHyland Affected before 4.3.0 Fixed in 4.3.0 Patch available CNA
- Alfresco Community (Transform Core) VendorHyland Affected before 5.3.0 Fixed in 5.3.0 Patch available CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:hyland:alfresco_transform_service:*:*:*:*:*:*:*:* | before 4.3 | Vulnerable | Hyland |
| cpe:2.3:a:hyland:alfresco_transform_core:*:*:*:*:*:*:*:* | before 5.3.0 | Vulnerable | Hyland |
| cpe:2.3:a:hyland:alfresco_transform_core:5.3.0:alpha1:*:*:*:*:*:* | 5.3.0 alpha1 | Vulnerable | Hyland |
- cpe:2.3:a:hyland:alfresco_transform_service:*:*:*:*:*:*:*:* Versions before 4.3 Vulnerable ·Hyland
- cpe:2.3:a:hyland:alfresco_transform_core:*:*:*:*:*:*:*:* Versions before 5.3.0 Vulnerable ·Hyland
- cpe:2.3:a:hyland:alfresco_transform_core:5.3.0:alpha1:*:*:*:*:*:* Versions 5.3.0 alpha1 Vulnerable ·Hyland
Remediation
- Fix · CNA Alfresco Transformation Service (Enterprise) (Hyland) Fixed in 4.3.0
- Fix · CNA Alfresco Community (Transform Core) (Hyland) Fixed in 5.3.0
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
Hyland Alfresco Community (Transform Core), Alfresco Transformation Service (Enterprise) — connect.hyland.com/t5/alfresco-blog/security-update-cve-202…
3 records Highest priority Priority MEDIUM 2 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2026-21295 Hyland Alfresco Transformation Service Argument Injection RCEPriority MEDIUM 49
- TI-2026-21294 Hyland Alfresco Transformation Service SSRFPriority LOW 37
Timeline
- 2026-10-02 Threatist record created from CVE-2026-26337
- 2026-10-03 Alias added: GHSA-3453-mrqq-23pm
References
More Hyland Alfresco Transform Core vulnerabilities
- TI-2026-21295 Hyland Alfresco Transformation Service Argument Injection RCE CVSS 4.0CRITICAL 9.3
- TI-2026-21294 Hyland Alfresco Transformation Service SSRF CVSS 4.0MEDIUM 6.9
Sources
- CVE-2026-26337 · CVE Program
- CVE-2026-26337 · NVD
- FIRST EPSS
- GHSA-3453-mrqq-23pm · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences