{"document":{"category":"csaf_vex","csaf_version":"2.0","title":"CVE-2026-33646: mise: Arbitrary Code Execution via Tera Templates in .tool-versions Files (Trust Bypass)","publisher":{"category":"vendor","name":"HarborGuard Database","namespace":"https://database.harborguard.co"},"tracking":{"id":"CVE-2026-33646","status":"final","version":"1","initial_release_date":"2026-06-26T16:51:44.261Z","current_release_date":"2026-06-26T16:51:44.261Z","revision_history":[{"date":"2026-06-26T16:51:44.261Z","number":"1","summary":"Initial machine-readable export from HarborGuard."}]},"distribution":{"tlp":{"label":"WHITE"},"text":"Public CVE data; freely redistributable."},"notes":[{"category":"description","text":"mise manages dev tools like node, python, cmake, and terraform. Prior to 2026.3.10, mise processes .tool-versions files through the Tera template engine during parsing, with the exec() function registered, enabling arbitrary command execution. Unlike .mise.toml files, .tool-versions files are not subject to trust verification in non-paranoid mode. This means an attacker can place a malicious .tool-versions file in a git repository, and when a victim with mise activated cds into the directory, arbitrary commands execute without any trust prompt. This vulnerability is fixed in 2026.3.10.","title":"CVE description"}],"references":[{"category":"self","summary":"CVE-2026-33646 on HarborGuard Database","url":"https://database.harborguard.co/cve/CVE-2026-33646"},{"category":"external","summary":"CVE Record","url":"https://www.cve.org/CVERecord?id=CVE-2026-33646"},{"category":"external","summary":"https://github.com/jdx/mise/security/advisories/GHSA-fjj5-v948-whjj","url":"https://github.com/jdx/mise/security/advisories/GHSA-fjj5-v948-whjj"}]},"product_tree":{"branches":[{"category":"vendor","name":"jdx","branches":[{"category":"product_name","name":"mise","branches":[{"category":"product_version","name":"< 2026.3.10","product":{"name":"jdx mise < 2026.3.10","product_id":"CSAFPID-1","product_identification_helper":{"cpe":"cpe:2.3:a:jdx:mise:\\<_2026.3.10:*:*:*:*:*:*:*"}}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-33646","title":"mise: Arbitrary Code Execution via Tera Templates in .tool-versions Files (Trust Bypass)","notes":[{"category":"description","text":"mise manages dev tools like node, python, cmake, and terraform. Prior to 2026.3.10, mise processes .tool-versions files through the Tera template engine during parsing, with the exec() function registered, enabling arbitrary command execution. Unlike .mise.toml files, .tool-versions files are not subject to trust verification in non-paranoid mode. This means an attacker can place a malicious .tool-versions file in a git repository, and when a victim with mise activated cds into the directory, arbitrary commands execute without any trust prompt. This vulnerability is fixed in 2026.3.10.","title":"CVE description"}],"product_status":{"known_affected":["CSAFPID-1"]},"scores":[{"cvss_v3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","baseScore":9.6,"baseSeverity":"CRITICAL"},"products":["CSAFPID-1"]}],"remediations":[{"category":"none_available","details":"No fixed version is published yet. Monitor the upstream advisory.","product_ids":["CSAFPID-1"]}]}]}