335 matches found
CVE-2026-42246 net-imap vulnerable to STARTTLS stripping via invalid response timing
Net::IMAP implements Internet Message Access Protocol IMAP client functionality in Ruby. Prior to versions 0.3.10, 0.4.24, 0.5.14, and 0.6.4, a man-in-the-middle attacker can cause Net::IMAPstarttls to return "successfully", without starting TLS. This issue has been patched in versions 0.3.10,...
CVE-2026-42246
Net::IMAP implements Internet Message Access Protocol IMAP client functionality in Ruby. Prior to versions 0.3.10, 0.4.24, 0.5.14, and 0.6.4, a man-in-the-middle attacker can cause Net::IMAPstarttls to return "successfully", without starting TLS. This issue has been patched in versions 0.3.10,...
CVE-2026-42246
Net::IMAP implements Internet Message Access Protocol IMAP client functionality in Ruby. Prior to versions 0.3.10, 0.4.24, 0.5.14, and 0.6.4, a man-in-the-middle attacker can cause Net::IMAPstarttls to return "successfully", without starting TLS. This issue has been patched in versions 0.3.10,...
Denial Of Service
Net::IMAP is vulnerable to Denial of Service. The vulnerability is due to quadratic time complexity in Net::IMAP::ResponseReader when processing large responses with many string literals, allowing a malicious IMAP server to send crafted responses that exhaust CPU resources and cause a denial of...
Improper Transport Layer Protection
net-imap is vulnerable to Improper Transport Layer Protection. The vulnerability is due to improper validation of the STARTTLS negotiation, where a man-in-the-middle attacker can cause Net::IMAPstarttls to report a successful TLS upgrade without establishing encryption, allowing interception of...
CRLF Injection
Net::IMAP is vulnerable to CRLF Injection. The vulnerability is due to insufficient validation and escaping of raw string arguments passed to several IMAP commands, which allows an attacker to inject CRLF sequences and execute arbitrary IMAP commands by supplying crafted user-controlled input...
Net::IMAP 安全漏洞
Net::IMAP is a Ruby client API for the IMAP message access protocol, developed by Ruby Open Source. Versions of Net::IMAP prior to 0.4.24, 0.5.14, and 0.6.4 contained security vulnerabilities. These vulnerabilities stemmed from the use of ResponseReader, which had a quadratic time complexity when...
Net::IMAP 安全漏洞
Net::IMAP is a Ruby client API for the IMAP message access protocol, developed by Ruby Open Source. There were security vulnerabilities in versions of Net::IMAP between 0.4.0 and 0.4.24, 0.5.0 and 0.5.14, and 0.6.0 and 0.6.4. These vulnerabilities stemmed from the use of SCRAM-SHA1 or SCRAM-SHA25...
Net::IMAP 安全漏洞
Net::IMAP is a Ruby client API for the IMAP message access protocol, developed by Ruby Open Source. Versions of Net::IMAP prior to 0.3.10, 0.4.24, 0.5.14, and 0.6.4 contained security vulnerabilities. These vulnerabilities stemmed from the possibility for man-in-the-middle attackers to cause...
Ruby net-imap < 0.4.24 / 0.5.x < 0.5.14 / 0.6.x < 0.6.4 Multiple Vulnerabilities
The version of the net-imap Ruby library installed on the remote host is prior to 0.4.24, 0.5.x prior to 0.5.14, or 0.6.x prior to 0.6.4. It is, therefore, affected by multiple vulnerabilities. - The Net::IMAP::ResponseReader component is affected by a quadratic time complexity flaw when parsing...
Ruby net-imap 0.4.x < 0.4.24 / 0.5.x < 0.5.14 / 0.6.x < 0.6.4 vulnerability
The version of the net-imap Ruby library installed on the remote host is prior to 0.4.x prior to 0.4.24, 0.5.x prior to 0.5.14, or 0.6.x prior to 0.6.4. It is, therefore, affected by a computational denial-of-service vulnerability. A denial of service vulnerability exists when authenticating a...
Ruby net-imap < 0.3.10 / 0.4.x < 0.4.24 / 0.5.x < 0.5.14 / 0.6.x < 0.6.4 vulnerability
The version of the net-imap Ruby library installed on the remote host is prior to 0.3.10, 0.4.x prior to 0.4.24, 0.5.x prior to 0.5.14, or 0.6.x prior to 0.6.4. It is, therefore, affected by a man-in-the-middle vulnerability. A flaw in the Net::IMAPstarttls function allows a man-in-the-middle...
CRLF Injection
Overview Affected versions of this package are vulnerable to CRLF Injection via the handling of raw string arguments in commands such as uidsearch, search, uidfetch, fetch, uidstore, store, and setquota. A user can execute arbitrary IMAP commands by injecting specially crafted input containing CR...
net-imap vulnerable to command Injection via "raw" arguments to multiple commands
Summary Several Net::IMAP commands accept a raw string argument that is sent to the server without validation or escaping. If this string is derived from user-controlled input, it may contain contain CRLF sequences, which an attacker can use to inject arbitrary IMAP commands. Details Net::IMAP's...
net-imap vulnerable to command Injection via unvalidated Symbol inputs
Summary Symbol arguments to commands are vulnerable to a CRLF Injection / IMAP Command injection via Symbol arguments passed to IMAP commands. Details Symbol arguments represent IMAP "system flags", which are formatted as "atoms" with no quoting with a "" prefix. Vulnerable versions of Net::IMAP...
CRLF Injection
Overview Affected versions of this package are vulnerable to CRLF Injection via unvalidated flag arguments in IMAP commands. A user can execute arbitrary IMAP commands by injecting CRLF sequences through crafted Symbol inputs. Remediation Upgrade net-imap to version 0.4.24, 0.5.14, 0.6.4 or highe...
GHSA-87PF-FPWV-P7M7 net-imap vulnerable to denial of service via high iteration count for `SCRAM-*` authentication
Summary When authenticating a connection with SCRAM-SHA1 or SCRAM-SHA256, a hostile server can perform a computational denial-of-service attack on the client process by sending a big iteration count value. Details A hostile IMAP server can send an arbitrarily large PBKDF2 iteration count in the...
Use of Blocking Code in Single-threaded, Non-blocking Context
Overview Affected versions of this package are vulnerable to Use of Blocking Code in Single-threaded, Non-blocking Context through the OpenSSL::KDF.pbkdf2hmac function during SCRAM authentication. An attacker can cause the Ruby client VM to become unresponsive by sending a large iteration count...
net-imap vulnerable to denial of service via high iteration count for `SCRAM-*` authentication
Summary When authenticating a connection with SCRAM-SHA1 or SCRAM-SHA256, a hostile server can perform a computational denial-of-service attack on the client process by sending a big iteration count value. Details A hostile IMAP server can send an arbitrarily large PBKDF2 iteration count in the...
Inefficient Algorithmic Complexity
Overview Affected versions of this package are vulnerable to Inefficient Algorithmic Complexity through the ResponseReader class. An attacker can exhaust the client's CPU by sending specially crafted IMAP responses containing many string literals, leading to significant performance degradation in...