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CVE-2026-26338 Hyland CVE debrief

CVE-2026-26338 is a server-side request forgery (SSRF) vulnerability in Hyland Alfresco Transformation Service. The vulnerability allows unauthenticated attackers to achieve SSRF through the document processing functionality. The CVSS score is 6.9, and the severity is MEDIUM. Affected organizations should review and apply vendor patches or updates if available. Compensating controls such as network access controls and monitoring should be implemented.

Vendor
Hyland
Product
Alfresco Transformation Service (Enterprise)
CVSS
MEDIUM 6.9
CISA KEV
Not listed in stored evidence
Original CVE published
2026-02-19
Original CVE updated
2026-07-14
Advisory published
2026-02-19
Advisory updated
2026-07-14

Who should care

Organizations using Hyland Alfresco Transformation Service should be aware of this vulnerability and take necessary actions to mitigate it. Operators, platform administrators, vulnerability management teams, and security teams should review the vulnerability and implement compensating controls if patches are not available.

Technical summary

The vulnerability exists in the document processing functionality of Hyland Alfresco Transformation Service, allowing unauthenticated attackers to achieve server-side request forgery (SSRF). The CVSS vector is CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/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. Defenders should focus on implementing compensating controls and monitoring for suspicious activity.

Defensive priority

MEDIUM

Recommended defensive actions

  • Inventory and verify affected versions of Hyland Alfresco Transformation Service
  • Apply vendor patches or updates if available
  • Implement compensating controls such as network access controls and monitoring
  • Monitor for suspicious activity and exception tracking
  • Review relevant monitoring, detection, and logs for exposed assets that need extra review
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record was published on 2026-02-19T18:24:59.930Z and was last modified on 2026-07-14T16:17:00.020Z. The NVD entry is currently Analyzed. The vulnerability allows unauthenticated attackers to achieve server-side request forgery (SSRF) through the document processing functionality. Evidence of exploitation is limited, and defenders should verify affected product deployments and review official advisories for mitigation guidance.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-26338 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-26338

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-26338 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-26338

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.