CVE-2026-86411

— UNSCORED

Published 2026-10-20 · Updated 2026-10-22

AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.

NVD description

An `ftp://` transfer configured with `CURLUSESSL_NONE` can reuse a pooled FTP control connection that a previous easy handle upgraded with `STARTTLS` and authenticated using a client certificate. The second handle performs neither a new TLS handshake nor a new FTP login, so the server continues to authorize it under the first handle's certificate identity.

All references

https://curl.se/docs/CVE-2026-86411.html
https://curl.se/docs/CVE-2026-86411.json
https://hackerone.com/reports/3973190

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.