64 matches found
Astra Linux – Vulnerability in curl
There is an improper authentication vulnerability in curl versions 7.33.0 through and including 7.82.0. This vulnerability may allow for the reuse of OAUTH2-authenticated connections without ensuring that the connection was authentically verified with the same credentials used for this transfer...
[SECURITY] Fedora 43 Update: nginx-1.30.4-1.fc43
Nginx is a web server and a reverse proxy server for HTTP, SMTP, POP3 and IMAP protocols, with a strong focus on high concurrency, performance and low memory usage...
[SECURITY] Fedora 44 Update: nginx-1.30.4-1.fc44
Nginx is a web server and a reverse proxy server for HTTP, SMTP, POP3 and IMAP protocols, with a strong focus on high concurrency, performance and low memory usage...
[SECURITY] Fedora 44 Update: nginx-1.30.3-1.fc44
Nginx is a web server and a reverse proxy server for HTTP, SMTP, POP3 and IMAP protocols, with a strong focus on high concurrency, performance and low memory usage...
EUVD-2026-39515
Hydra through 9.7, fixed in commit 9cc84c2, contains a stack buffer overflow in NTLM authentication across SMTP, POP3, IMAP, NNTP, HTTP, HTTP-Proxy, and HTTP-Proxy-Urlenum modules when processing malicious NTLM Type-2 challenges. A malicious server can send a crafted NTLM Type-2 challenge with an...
[SECURITY] Fedora 42 Update: nginx-1.30.1-1.fc42
Nginx is a web server and a reverse proxy server for HTTP, SMTP, POP3 and IMAP protocols, with a strong focus on high concurrency, performance and low memory usage...
EUVD-2026-29922
A vulnerability exists where a connection requiring TLS incorrectly reuses an existing unencrypted connection from the same connection pool. If an initial transfer is made in clear-text via IMAP, SMTP, or POP3, a subsequent request to that same host bypasses the TLS requirement and instead transm...
CVE-2026-4873 connection reuse ignores TLS requirement
A vulnerability exists where a connection requiring TLS incorrectly reuses an existing unencrypted connection from the same connection pool. If an initial transfer is made in clear-text via IMAP, SMTP, or POP3, a subsequent request to that same host bypasses the TLS requirement and instead transm...
CVE-2026-4873 connection reuse ignores TLS requirement
A vulnerability exists where a connection requiring TLS incorrectly reuses an existing unencrypted connection from the same connection pool. If an initial transfer is made in clear-text via IMAP, SMTP, or POP3, a subsequent request to that same host bypasses the TLS requirement and instead transm...
CVE-2026-4873
A logic error in cURL and libcurl allows the software to incorrectly reuse an existing unencrypted connection from a connection pool when a TLS-required connection is requested. If an initial transfer is conducted in clear-text (e.g., via IMAP , SMTP , or POP3 ), subsequent requests to the same h...
CVE-2026-4873
A vulnerability exists where a connection requiring TLS incorrectly reuses an existing unencrypted connection from the same connection pool. If an initial transfer is made in clear-text via IMAP, SMTP, or POP3, a subsequent request to that same host bypasses the TLS requirement and instead transm...
CVE-2026-4873
A vulnerability exists where a connection requiring TLS incorrectly reuses an existing unencrypted connection from the same connection pool. If an initial transfer is made in clear-text via IMAP, SMTP, or POP3, a subsequent request to that same host bypasses the TLS requirement and instead transm...
Subnet Solutions PowerSYSTEM Center Injection Vulnerability
Subnet Solutions PowerSYSTEM Center is a power solution offered by Subnet Solutions Corporation. The Subnet Solutions PowerSYSTEM Center has an injection vulnerability, which stems from CRLF injections during SMTPS communication...
UBUNTU-CVE-2026-4873
A vulnerability exists where a connection requiring TLS incorrectly reuses an existing unencrypted connection from the same connection pool. If an initial transfer is made in clear-text via IMAP, SMTP, or POP3, a subsequent request to that same host bypasses the TLS requirement and instead transm...
CVE-2026-4873
A vulnerability exists where a connection requiring TLS incorrectly reuses an existing unencrypted connection from the same connection pool. If an initial transfer is made in clear-text via IMAP, SMTP, or POP3, a subsequent request to that same host bypasses the TLS requirement and instead transm...
CURL-CVE-2026-4873 connection reuse ignores TLS requirement
A vulnerability exists where a connection requiring TLS incorrectly reuses an existing unencrypted connection from the same connection pool. If an initial transfer is made in clear-text via IMAP, SMTP, or POP3, a subsequent request to that same host bypasses the TLS requirement and instead transm...
PT-2026-35891
Name of the Vulnerable Software and Affected Versions curl affected versions not specified Description A flaw exists where a connection requiring TLS incorrectly reuses an existing unencrypted connection from the same connection pool. If an initial transfer is performed in clear-text via IMAP,...
[SECURITY] Fedora 44 Update: nginx-1.28.3-1.fc44
Nginx is a web server and a reverse proxy server for HTTP, SMTP, POP3 and IMAP protocols, with a strong focus on high concurrency, performance and low memory usage...
GHSA-9J88-VVJ5-VHGR MailKit has STARTTLS Response Injection via unflushed stream buffer that enables SASL mechanism downgrade
Summary A STARTTLS Response Injection vulnerability in MailKit allows a Man-in-the-Middle attacker to inject arbitrary protocol responses across the plaintext-to-TLS trust boundary, enabling SASL authentication mechanism downgrade e.g., forcing PLAIN instead of SCRAM-SHA-256. The internal read...
curl: CVE-2026-4873: connection reuse ignores TLS requirement
A vulnerability was discovered in libcurl's connection reuse for cleartext-upgrade mail protocols. The vulnerability was that the later transfer's CURLOPTUSESSL option was not properly included if a plaintext connection was already open and reusable. This affected the smtp://, pop3://, and imap:/...