Ruby net-imap < 0.5.15 / 0.6.x < 0.6.4.1 Multiple Vulnerabilities

The version of the net-imap Ruby library installed on the remote host is prior to 0.5.15, or 0.6.x prior to 0.6.4.1. It is, therefore, affected by multiple vulnerabilities. - Several Net::IMAP commands accept a raw data argument that is sent verbatim after validation to prevent command injection...

Ubuntu 16.04 LTS / 18.04 LTS : Ruby vulnerabilities (USN-8431-1)

The remote Ubuntu 16.04 LTS / 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8431-1 advisory. It was discovered that Ruby's Net::IMAP library did not properly verify that Transport Layer Security TLS encryption was started after issuin...

USN-8431-1 ruby2.3, ruby2.5 vulnerabilities

It was discovered that Ruby's Net::IMAP library did not properly verify that Transport Layer Security TLS encryption was started after issuing a STARTTLS command. A remote attacker could possibly use this issue to perform a machine-in-the-middle attack and silently bypass TLS encryption...

SUSE SLED15 / SLES15 Security Update : mutt (SUSE-SU-2026:2301-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2301-1 advisory. This update for mutt fixes the following issues - CVE-2026-43859: strfcpy used instead of memcpy for the IMAP...

SUSE SLES12 Security Update : mutt (SUSE-SU-2026:2300-1)

The remote SUSE Linux SLES12 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2300-1 advisory. This update for mutt fixes the following issues - CVE-2026-43859: strfcpy used instead of memcpy for the IMAP authcram MD5 digest bsc1263897. -...

GHSA-46Q3-7GV7-QMGG Net::IMAP: Command Injection via ID command argument

Summary Two Net::IMAP commands, id and enable, do not validate their arguments. Arguments to either command could be used by an attacker to inject arbitrary IMAP commands. Please note that passing untrusted inputs to these commands is usually inappropriate and expected to be uncommon. Details Whe...

Arbitrary Command Injection

Overview Affected versions of this package are vulnerable to Arbitrary Command Injection via the handling of raw data arguments in IMAP commands id and enable. An attacker can inject arbitrary IMAP commands by supplying specially crafted input containing CRLF sequences as arguments. This may allo...

Net::IMAP: Command Injection via ID command argument

Summary Two Net::IMAP commands, id and enable, do not validate their arguments. Arguments to either command could be used by an attacker to inject arbitrary IMAP commands. Please note that passing untrusted inputs to these commands is usually inappropriate and expected to be uncommon. Details Whe...

GHSA-C4FP-CXRR-MJ66 Net::IMAP: Denial of Service via incomplete raw argument validation

Summary Several Net::IMAP commands accept a raw string argument which is only validated to prevent CRLF injection and then sent verbatim. If this string is derived from user-controlled input, an attacker can force the next command to be absorbed as a continuation of the first command. This will...

Collapse of Data into Unsafe Value

Overview Affected versions of this package are vulnerable to Collapse of Data into Unsafe Value incomplete validation of raw string arguments in certain IMAP command parameters such as criteria, searchkeys and attr. An attacker can cause commands to hang or trigger timeouts by supplying specially...

Net::IMAP: Denial of Service via incomplete raw argument validation

Summary Several Net::IMAP commands accept a raw string argument which is only validated to prevent CRLF injection and then sent verbatim. If this string is derived from user-controlled input, an attacker can force the next command to be absorbed as a continuation of the first command. This will...

GHSA-8P34-64R3-MWG8 Net::IMAP: Command Injection via non-synchronizing literal in "raw" argument

Several Net::IMAP commands accept a "raw data" argument that is sent verbatim after validation to prevent command injection. However, if a server does not support non-synchronizing literals, it may still be possible to inject arbitrary IMAP commands inside non-synchronizing literals. Details Raw...

Arbitrary Command Injection

Overview Affected versions of this package are vulnerable to Arbitrary Command Injection via the handling of raw data arguments in IMAP commands such as criteria, searchkeys and attr. An attacker can execute arbitrary IMAP commands by injecting CRLF sequences into user-controlled input, which are...

Net::IMAP: Command Injection via non-synchronizing literal in "raw" argument

Several Net::IMAP commands accept a "raw data" argument that is sent verbatim after validation to prevent command injection. However, if a server does not support non-synchronizing literals, it may still be possible to inject arbitrary IMAP commands inside non-synchronizing literals. Details Raw...

Net::IMAP: Command Injection via ID command argument

Summary Two Net::IMAP commands, id and enable, do not validate their arguments. Arguments to either command could be used by an attacker to inject arbitrary IMAP commands. Please note that passing untrusted inputs to these commands is usually inappropriate and expected to be uncommon. Details Whe...

Net::IMAP: Denial of Service via incomplete raw argument validation

Summary Several Net::IMAP commands accept a raw string argument which is only validated to prevent CRLF injection and then sent verbatim. If this string is derived from user-controlled input, an attacker can force the next command to be absorbed as a continuation of the first command. This will...

PT-2026-48341

Name of the Vulnerable Software and Affected Versions Net::IMAP versions prior to 0.5.15 Net::IMAP versions prior to 0.6.5 Description Several commands in the Net::IMAP Ruby client accept raw string arguments that are only validated to prevent CRLF injection and are then sent verbatim. An incorre...

PT-2026-48342

Name of the Vulnerable Software and Affected Versions Net::IMAP versions prior to 0.5.15 Net::IMAP versions prior to 0.6.5 Description The Net::IMAPid and Net::IMAPenable functions do not properly validate their arguments. When Net::IMAPid is called with a hash argument, it fails to prohibit CRLF...

CVE-2020-37248

OfflineIMAP prior to version 8.0.3 is affected by a STARTTLS trust issue: the client trusts the server’s STARTTLS capability before authentication, enabling man-in-the-middle attacks that can exfiltrate credentials in cleartext. This vulnerability can enable an attacker to take over the connectio...

Security update for mutt

This update for mutt fixes the following issues CVE-2026-43859: strfcpy used instead of memcpy for the IMAP authcram MD5 digest bsc1263897. CVE-2026-43860: truncation of hashpasswd by one byte for IMAP authcram MD5 digest bsc1263896. CVE-2026-43861: missing check for \0 in urlpctdecode bsc1263895...