Link Following Vulnerability in Mistral.rs by EricLBuehler
CVE-2026-108759

7.6HIGH

Key Information:

Vendor

Ericlbuehler

Status
Mistral.rs
Vendor
CVE Published:
11 October 2026

What is CVE-2026-108759?

Mistral.rs versions 0.9.0 through 0.9.4 contain a vulnerability in the mistralrs-code-exec component that enables sandboxed shell code to bypass restrictions. This flaw allows attackers or manipulated agents to create symlinks that enable access to files beyond the sandbox's boundaries, potentially compromising server integrity. By naming symlinks as outputs or reusing sessions with symlinked input paths, these malicious actors can exploit server permissions, leading to unauthorized reading and overwriting of sensitive files.

Affected Version(s)

mistral.rs 0.9.0 <= 0.9.4

References

https://hackmd.io/@haind03/ericlbuehler-mistralrs-code-ex...
third-party-advisory
https://github.com/EricLBuehler/mistral.rs/blob/440093545...
technical-description
https://github.com/EricLBuehler/mistral.rs/blob/440093545...
technical-description

CVSS V4

Score:
7.6
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

HaiND from the Post and Telecommunication Institute of Technology
.