{"id":"CVE-2026-85674","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-85674","summary":"aider (aider-chat) automatically loads a .aider.conf.yml configuration file from the root of the git repository it is launched in. A crafted repository can set test-cmd (executed at…","details":"aider (aider-chat) automatically loads a .aider.conf.yml configuration file from the root of the git repository it is launched in. A crafted repository can set test-cmd (executed at startup) or lint-cmd (executed on the first file edit), which aider runs through a shell (subprocess with shell=True) without any user confirmation, LLM interaction, or API key. Consequently, a user who clones and runs aider inside an attacker-supplied repository achieves arbitrary command execution on their machine. The behavior is long-standing and was confirmed on 0.86.3.dev (current main).","published":"2026-09-04T15:17:45.597","modified":"2026-09-04T15:17:45.597","cvss":{"score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://github.com/Aider-AI/aider"},{"type":"WEB","url":"https://github.com/Aider-AI/aider/blob/v0.86.2/aider/main.py"},{"type":"WEB","url":"https://github.com/Aider-AI/aider/issues/5254"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/aider-0.86.2-remote-code-execution-via-aider-conf-yml"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-09-04T15:17:45.597"}}