Apache CouchDB: Admin credentials leading to code execution as operating system user
CVE-2026-86471 · published 20 Oct 2026
How serious is it
- Severity: critical, CVSS score 9.3 out of 10.
- No exploit prediction (EPSS) score yet.
- Not on the CISA list of exploited vulnerabilities.
- No public exploit in Exploit-DB.
Is your app affected by CVE-2026-86471?
Paste this prompt into Claude Code, Cursor or any AI coding tool: it runs a free Shippable scan of your project and fixes what it finds. Built with Lovable, Bolt or v0? Scan your live app. Or upload your package file.
Who is affected
- Apache Software Foundation Apache CouchDB: < 3.5.3
How to check
- Find out whether you run the affected product and which version, then compare it with the versions above.
How to fix
Copies a prompt for Claude Code, Cursor or Codex that asks it to check whether you run this product.
- Apply the vendor's update or mitigation from the references below. If there is none yet, limit exposure of the affected service until there is.
- If a vulnerable version was live, check your logs and rotate the secrets that server could read.
The advisory
An unvalidated runtime configuration value in Apache CouchDB 3.5.2 and below on all platforms allows a CouchDB server admin to run arbitrary shell commands as the CouchDB operating system user.
Users are recommended to upgrade to version 3.5.3, which fixes this issue.
Check your whole app
Dependencies are only half of it. Free and read-only: before you push, run npx shippable-dev scan localhost:3000 in your project folder, no account needed. For your live app, you prove it's yours with a one-line tag first.
References
- lists.apache.org/thread.html/pj83174r8f8f64odf47fwhozbfjtot0f
- lists.apache.org/thread/c8p73gswgogtnzvk7hpw8jb8d4mnosdp
Merged from CVE List. Last updated 24 Oct 2026. All vulnerabilities · RSS · JSON