tag
Libcurl
curl SMB Connection-Reuse Use-After-Free (CVE-2026-3805)
libcurl's SMB protocol handler stores a request-scoped req->path pointer that points into memory owned by a temporary "needle" connection object used during connection-cache lookup (smbc->share). When a second SMB transfer to the same server reuses an…
curl SMTP EXPN Recipient CRLF Command Injection
Stock curl does not reject CR/LF sequences in the recipient operand used with SMTP EXPN/VRFY custom requests (CURLOPTMAILRCPT), allowing an attacker who controls that operand to inject arbitrary additional SMTP protocol lines into the same authenticated…
libcurl mTLS Connection Reuse Authentication Bypass (CVE-2026-8932)
CVE-2026-8932 is a Low-severity authentication bypass in libcurl's TLS connection reuse logic. Certain mTLS private-key configuration parameters (key file path, key type, key password) were omitted from the connection-matching comparison performed when…