CVE-2026-115813 AWS CVE debrief

Who should care

Defenders and administrators of Amazon Web Services Multi Model Server 1.1.11 and earlier should assess exposure and migrate to a supported model serving solution. This is crucial because Multi Model Server is end of life and no fixed version is available, potentially leaving systems vulnerable to server-side request forgery attacks. Immediate action is necessary to prevent potential unauthorized access to internal network destinations and data breaches.

Why it matters

CVE-2026-115813 is a server-side request forgery vulnerability in Amazon Web Services Multi Model Server 1.1.11 and earlier. Defenders and administrators should assess exposure and migrate to a supported model serving solution as Multi Model Server is end of life and no fixed version is available.

• Potential unauthorized access to internal network destinations
• Possible data breaches or unauthorized data disclosure
• Required verification of affected versions and potential impacts
• Need for migration to a supported model serving solution

Technical summary

A server-side request forgery vulnerability exists in Amazon Web Services Multi Model Server 1.1.11 and earlier. The vulnerability might allow remote actors to send requests to internal network destinations via a crafted model URL. This issue arises because Multi Model Server is end of life and lacks a fixed version, emphasizing the need for migration to a supported model serving solution. Defenders and administrators should assess exposure and plan for migration to mitigate potential risks. The vulnerability's technical details and potential impacts require careful review.

Defensive priority

Users should discontinue use of Multi Model Server and migrate to a supported model serving solution.

Recommended defensive actions

• Discontinue use of Multi Model Server
• Migrate to a supported model serving solution
• Verify the vulnerability's impact on internal network destinations
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check 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 and NVD entry provide details about the vulnerability. However, the affected versions and potential impacts require verification from the supplied official sources. Defenders should verify the vulnerability's impact on internal network destinations and assess exposure. The lack of a fixed version for Multi Model Server 1.1.11 and earlier necessitates immediate attention.

Sources and 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.