{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-109428 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-109428 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-109428 is a high-severity command injection vulnerability in mistralai mistral-vibe, published on 13 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-109428 and fix it if it is affected.\n\nWhat it is: CVE-2026-109428 is a high-severity command injection vulnerability in mistralai mistral-vibe, published on 13 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-109428 in the wild and no public exploit code.\n\nAffected product: mistralai mistral-vibe. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-109428/ (Markdown: https://insights.sbomify.com/CVE-2026-109428/index.md)","id":"CVE-2026-109428","markdown":"https://insights.sbomify.com/CVE-2026-109428/index.md","name":"CVE-2026-109428","record":{"aliases":["GHSA-66p3-rgrf-xjf3"],"analysis":{"component_type":"developer_tool","fix_type":"upgrade","impacts":["code_execution","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Mistral Vibe CLI","requires_auth":"none","summary":"Attackers can bypass permission checks in Mistral Vibe to execute arbitrary commands by exploiting line continuation parsing discrepancies.","user_interaction":"required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-436","name":"Interpretation Conflict"}],"description":"Mistral Vibe before 2.25.5 contains a permission validation bypass vulnerability that allows attackers to execute unauthorized commands by exploiting a parsing discrepancy between tree-sitter-bash and bash in handling backslash-newline line continuations in the _extract_commands() function of bash.py. Attackers can craft a command string where tree-sitter-bash extracts only an allowlisted prefix such as cd while bash joins the line continuation into a materially different and hidden command such as a curl request, causing resolve_permission to grant ALWAYS permission while bash executes unauthorized arbitrary commands.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Mistral Vibe \u003c 2.25.5 Permission Bypass via Bash Line Continuation","id":"CVE-2026-109428","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"command_injection","year":"2026"},"n_packages":0,"n_references":4,"next":{"headline":"Mistral Vibe \u003c 2.25.4 Bash Permission Bypass via ${var@P} Prompt-Transform","id":"CVE-2026-109429"},"packages":[],"prev":{"headline":"Telegram-Stremio 5.1.0 Broken Object Authorization via Stream IDs","id":"CVE-2026-109427"},"products":["mistral-vibe"],"published":"2026-10-13","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-26","vendors":["mistralai"]},"summary":"Attackers can bypass permission checks in Mistral Vibe to execute arbitrary commands by exploiting line continuation parsing discrepancies.","url":"https://insights.sbomify.com/CVE-2026-109428/"}