Vulnerability · Published Feb 19, 2026 · Assigned by VulnCheck
CVE-2026-26339Hyland Alfresco Transformation Service Argument Injection RCE
Critical 9.8
In plain English
A critical-severity server-side request forgery in Alfresco Community (Transform Core) from Hyland. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 50% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.6%top 49.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Hyland | Alfresco Transformation Service (Enterprise) | 0 – before 4.2.3 |
| Hyland | Alfresco Community (Transform Core) | 0 – before 5.2.4 |
Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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