Vulnerability in Ericlbuehler Mistral.rs
CVE-2026-108759
mistral.rs 0.9.0 through 0.9.4 contains a link following vulnerability in mistralrs-code-exec that allows sandboxed shell code to read and overwrite files outside the sandbox via symlinks. Attackers or prompt-injected agents can name symlinks as outputs or reuse sessions with symlinked input paths to access files with the server process's permissions.
Published .
CVSS v3 metric
CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- hackmd.io/@haind03/ericlbuehler-mistralrs-code-exec-output-symlink-sandbox-esca… (third-party-advisory)
- github.com/EricLBuehler/mistral.rs/blob/4400935451da5e2dc7379a3f92fbbada66557f6… (technical-description)
- github.com/EricLBuehler/mistral.rs/blob/4400935451da5e2dc7379a3f92fbbada66557f6… (technical-description)
- github.com/EricLBuehler/mistral.rs (product)
- www.vulncheck.com/advisories/mistral-rs-0.9.0-through-0.9.4-sandbox-escape-via-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-108759?
- CVE-2026-108759 is a medium-severity vulnerability in Ericlbuehler Mistral.rs, classified under Improper Link Resolution Before File Access. CVSS score: 6.8/10. Published 2026-10-11.
- How severe is CVE-2026-108759?
- Medium severity. CVSS v3 base score is 6.8 out of 10.