DEBIAN-CVE-2026-86411

An ftp:// transfer configured with CURLUSESSLNONE 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...

CVE-2026-86411

An ftp:// transfer configured with CURLUSESSLNONE 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...

PT-2026-114420

Name of the Vulnerable Software and Affected Versions curl versions prior to 8.23.0-1.1 Description An ftp:// transfer configured with CURLUSESSL NONE may reuse a pooled FTP control connection previously upgraded with STARTTLS and authenticated via a client certificate. Because the subsequent...

EulerOS 2.0 SP11 : curl (EulerOS-SA-2026-4220)

According to the versions of the curl packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A vulnerability exists where a new transfer that uses STARTTLS to upgrade the connection might reuse an existing live connection even though the TLS...

EulerOS 2.0 SP11 : curl (EulerOS-SA-2026-4311)

According to the versions of the curl packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A vulnerability exists where a new transfer that uses STARTTLS to upgrade the connection might reuse an existing live connection even though the TLS...

striptls

striptls - proxy de auditoría implementación de prueba de concepto de ataques de despojo de STARTTLS Una implementación genérica de proxy tcp y herramienta de auditoría para realizar interceptación ssl/tls independiente del protocolo y ataques de despojo de STARTTLS en SMTP, POP3, IMAP, FTP, NNTP...

CVE-2026-104704 Cleartext Transmission of Sensitive Information in hMailServer

Progressive Robot hMailServer 6.0.0 through 6.3.5 does not enforce TLS for outbound SMTP delivery to a mail exchanger whose DNSSEC-validated TLSA records contain no DANE-EE usage 3 record, contrary to RFC 7672 section 2.2. The server used only DANE-EE records and treated a validated TLSA record s...

CVE-2026-104704 Cleartext Transmission of Sensitive Information in hMailServer

Progressive Robot hMailServer 6.0.0 through 6.3.5 does not enforce TLS for outbound SMTP delivery to a mail exchanger whose DNSSEC-validated TLSA records contain no DANE-EE usage 3 record, contrary to RFC 7672 section 2.2. The server used only DANE-EE records and treated a validated TLSA record s...

CVE-2026-104704

Progressive Robot hMailServer versions 6.0.0 through 6.3.5 are vulnerable to a flaw where the server fails to enforce TLS for outbound SMTP delivery when DNSSEC-validated TLSA records lack a DANE-EE (usage 3) record. Instead of strictly adhering to RFC 7672, the server treats certain unusable rec...

EulerOS 2.0 SP15 : curl (EulerOS-SA-2026-3903)

According to the versions of the curl packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A use-after-free vulnerability exists in libcurl when an applicationx000D configures an HTTP/2 stream-dependency tree via CURLOPTSTREAMDEPENDS orx00...

EulerOS 2.0 SP15 : curl (EulerOS-SA-2026-3969)

According to the versions of the curl packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A use-after-free vulnerability exists in libcurl when an applicationx000D configures an HTTP/2 stream-dependency tree via CURLOPTSTREAMDEPENDS orx00...

CVE-2026-107121

A flaw was found in the SMTP email configuration handling of the keycloak-services component. When the STARTTLS option is enabled, Keycloak fails to strictly enforce an encrypted connection, allowing it to fall back to unencrypted communication if the encryption request is tampered with. An...

EUVD-2026-94213

A flaw was found in the SMTP email configuration handling of the keycloak-services component. When the STARTTLS option is enabled, Keycloak fails to strictly enforce an encrypted connection, allowing it to fall back to unencrypted communication if the encryption request is tampered with. An...

CVE-2026-107121

A flaw was found in the SMTP email configuration handling of the keycloak-services component. When the STARTTLS option is enabled, Keycloak fails to strictly enforce an encrypted connection, allowing it to fall back to unencrypted communication if the encryption request is tampered with. An...

CVE-2026-107121 Keycloak-services: keycloak-services: smtp starttls plaintext credential and message downgrade

A flaw was found in the SMTP email configuration handling of the keycloak-services component. When the STARTTLS option is enabled, Keycloak fails to strictly enforce an encrypted connection, allowing it to fall back to unencrypted communication if the encryption request is tampered with. An...

CVE-2026-107121

A flaw exists in the SMTP email configuration handling of the keycloak-services component. When the STARTTLS option is enabled, the system fails to strictly enforce encrypted connections, allowing a downgrade to unencrypted communication if the encryption request is tampered with. An attacker cap...

CVE-2026-107121

A flaw was found in the SMTP email configuration handling of the keycloak-services component. When the STARTTLS option is enabled, Keycloak fails to strictly enforce an encrypted connection, allowing it to fall back to unencrypted communication if the encryption request is tampered with. An...

CVE-2026-107121: Cleartext Transmission of Sensitive Information

A flaw was found in the SMTP email configuration handling of the keycloak-services component. When the STARTTLS option is enabled, Keycloak fails to strictly enforce an encrypted connection, allowing it to fall back to unencrypted communication if the encryption request is tampered with. An...

PT-2026-107420

A flaw was found in the SMTP email configuration handling of the keycloak-services component. When the STARTTLS option is enabled, Keycloak fails to strictly enforce an encrypted connection, allowing it to fall back to unencrypted communication if the encryption request is tampered with. An...

Astra Linux – Vulnerability in curl

When curl version 7.20.0 or later connects to an IMAP or POP3 server to retrieve data using STARTTLS to upgrade to TLS security, the server can send multiple responses at once, which are cached by curl. In this case, curl upgrades to TLS, but it does not discard the cached responses. Instead, it...