CVE-2026-86411 (GCVE-0-2026-86411)

Vulnerability from cvelistv5 – Published: 2026-10-20 20:02 – Updated: 2026-10-20 20:02
VLAI
Title
FTP connection reuse inherits client-certificate
Summary
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.
Severity
No CVSS data available.
CWE
Assigner
curl CNA under the redhat root
CNA scorecard D 46/100 over 59 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
curl curl Affected: 8.21.0 , ≤ 8.21.0 (semver)
guessed Create a notification for this product.
Credits
Stanislav Fort (Aisle Research) Stefan Eissing
Show details on NVD website
To clipboard 

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}



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