CVE-2026-85674aider 0.86.2 Remote Code Execution via .aider.conf.yml
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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).
- CVSS
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-94
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Sep 10, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Aider-AI aider aider_ai:aider (from the name) | through 0.86.2 | CNA record |
References
- https://github.com/Aider-AI/aider/issues/5254issue-tracking
- https://github.com/Aider-AI/aiderproduct
- https://github.com/Aider-AI/aider/blob/v0.86.2/aider/main.pytechnical-description
- https://www.vulncheck.com/advisories/aider-0.86.2-remote-code-execution-via-aider-conf-ymlthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.