{"id":"CVE-2026-108759","aliases":["EUVD-2026-96924","GHSA-fjjm-5mgr-r8vp"],"status":"published","title":"mistral.rs 0.9.0 through 0.9.4 Sandbox Escape via Symlink Following in mistralrs-code-exec","description":"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.","severity":{"version":"4.0","score":7.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00321,"percentile":0.25377,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-59"],"published":"2026-10-11T12:19:56Z","modified":"2026-10-28T02:31:02Z","products":[{"vendor":"ericlbuehler","product":"mistral.rs"}],"references":[{"url":"https://hackmd.io/@haind03/ericlbuehler-mistralrs-code-exec-output-symlink-sandbox-escape","tags":["third-party-advisory","advisory"]},{"url":"https://github.com/EricLBuehler/mistral.rs/blob/4400935451da5e2dc7379a3f92fbbada66557f6c/mistralrs-code-exec/src/files.rs#L241-L254","tags":["technical-description","article"]},{"url":"https://github.com/EricLBuehler/mistral.rs/blob/4400935451da5e2dc7379a3f92fbbada66557f6c/mistralrs-code-exec/src/mount.rs#L30-L50","tags":["technical-description","article"]},{"url":"https://github.com/EricLBuehler/mistral.rs","tags":["product","package"]},{"url":"https://www.vulncheck.com/advisories/mistral-rs-0.9.0-through-0.9.4-sandbox-escape-via-symlink-following-in-mistralrs-code-exec","tags":["third-party-advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-108759","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-fjjm-5mgr-r8vp"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/108xxx/CVE-2026-108759.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-108759","title":"mistral.rs 0.9.0 through 0.9.4 Sandbox Escape via Symlink Following in mistralrs-code-exec","description":"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.","status":"published","published":"2026-10-11T12:19:56.496Z","modified":"2026-10-18T11:53:05.908Z","cvss":[{"version":"4.0","score":7.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high","assessor":"cna"},{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-59"],"updated_at":"2026-11-02T14:20:10.510075Z"}],"euvd":[{"id":"EUVD-2026-96924","description":"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.","status":"published","published":"2026-10-11T12:19:56Z","modified":"2026-10-18T11:53:05Z","cvss":[{"version":"4.0","score":7.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T17:00:00.923575Z"}],"ghsa":[{"id":"GHSA-fjjm-5mgr-r8vp","title":"mistral.rs 0.9.0 through 0.9.4 contains a link following vulnerability in mistralrs-code-exec...","description":"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.","status":"published","published":"2026-10-11T15:31:06Z","modified":"2026-10-11T15:31:06Z","cvss":[{"version":"4.0","score":7.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"},{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"medium"}],"cwes":["CWE-59"],"updated_at":"2026-11-02T15:13:04.632316Z"}],"nvd":[{"id":"CVE-2026-108759","description":"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.","status":"published","published":"2026-10-11T13:17:21.167Z","modified":"2026-10-18T12:17:01.27Z","cvss":[{"version":"4.0","score":7.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-59"],"updated_at":"2026-11-02T14:12:55.874869Z"}],"osv":[{"id":"CVE-2026-108759","title":"mistral.rs 0.9.0 through 0.9.4 Sandbox Escape via Symlink Following in mistralrs-code-exec","description":"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.","status":"published","published":"2026-10-11T12:19:56.496Z","modified":"2026-10-28T02:31:02.725046631Z","cvss":[{"version":"4.0","score":7.6,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-59"],"updated_at":"2026-11-02T15:44:55.279797Z"}]}}