CVE-2026-26339 is a critical remote code execution vulnerability in Hyland Alfresco Transformation Service, specifically affecting the alfresco_transform_core and alfresco_transform_service components. This flaw allows unauthenticated attackers to execute arbitrary code by exploiting an argument injection vulnerability within the document processing functionality. With a CVSS score of 9.8 (CRITICAL), it presents a severe risk due to its network-based attack vector, low attack complexity, and complete compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation or publicly available exploit code in Metasploit, Nuclei, or ExploitDB, the vulnerability has garnered significant community discussion, indicating high awareness.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 4.2.3CPE matchmatch criteria | cpe:2.3:a:hyland:alfresco_transform_service:*:*:*:*:*:*:*:* | ||
< 5.2.4CPE matchmatch criteria | cpe:2.3:a:hyland:alfresco_transform_core:*:*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.