net-imap vulnerable to STARTTLS stripping via invalid response timing

Summary A man-in-the-middle attacker can cause Net::IMAPstarttls to return "successfully", without starting TLS. Details When using Net::IMAPstarttls to upgrade a plaintext connection to use TLS, a man-in-the-middle attacker can inject a tagged OK response with an easily predictable tag. By sendi...

CVE-2026-43860

CVE-2026-43860 affects mutt prior to 2.3.2, where the hash_passwd is sometimes truncated by one byte during IMAP auth_cram MD5 digest. The root cause stated is a truncation issue in handling hash_passwd for IMAP CRAM-MD5 authentication. Publicly available documents do not specify the exact techni...

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 STARTTLS stripping via invalid response timing

Summary A man-in-the-middle attacker can cause Net::IMAPstarttls to return "successfully", without starting TLS. Details When using Net::IMAPstarttls to upgrade a plaintext connection to use TLS, a man-in-the-middle attacker can inject a tagged OK response with an easily predictable tag. By sendi...

CVE-2026-40566

FreeScout is a free self-hosted help desk and shared mailbox. Versions prior to 1.8.213 have a Server-Side Request Forgery SSRF vulnerability in the IMAP/SMTP connection test functionality of FreeScout's MailboxesController. Three AJAX actions fetchtest line 731, sendtest line 682, and imapfolder...

CVE-2026-40566 FreeScout vulnerable to SSRF via IMAP/SMTP Connection Test Endpoints

FreeScout is a free self-hosted help desk and shared mailbox. Versions prior to 1.8.213 have a Server-Side Request Forgery SSRF vulnerability in the IMAP/SMTP connection test functionality of FreeScout's MailboxesController. Three AJAX actions fetchtest line 731, sendtest line 682, and imapfolder...

CVE-2026-35538

An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. Unsanitized IMAP SEARCH command arguments could lead to IMAP injection or CSRF bypass during mail search...

Roundcube Webmail 参数注入漏洞

Roundcube Webmail is an open-source browser-based IMAP client developed by Roundcube. It supports address book management, information search, spelling checking, etc. Versions of Roundcube Webmail prior to 1.5.14 and 1.6.14 had a parameter injection vulnerability. This vulnerability stemmed from...

cpython: IMAP command injection in user-controlled commands

A flaw was found in the imaplib module in the Python standard library. The imaplib module does not reject control characters, such as newlines, in user-controlled input passed to IMAP commands. This issue allows an attacker to inject additional commands to be executed in the IMAP server...

cpython: IMAP command injection in user-controlled commands

A flaw was found in the imaplib module in the Python standard library. The imaplib module does not reject control characters, such as newlines, in user-controlled input passed to IMAP commands. This issue allows an attacker to inject additional commands to be executed in the IMAP server...

RLSA-2026:4463 Moderate: python3.12 security update

Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. Security Fixes:...

MiracleLinux 9 : python3.9-3.9.25-3.el9_7.1 (AXSA:2026-295:02)

The remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-295:02 advisory. cpython: IMAP command injection in user-controlled commands CVE-2025-15366 cpython: POP3 command injection in user-controlled commands CVE-2025-15367...

K000160292: Curl vulnerability CVE-2025-14524

Security Advisory Description When an OAuth2 bearer token is used for an HTTPS transfer, and that transfer performs a cross-protocol redirect to a second URL that uses an IMAP, LDAP, POP3 or SMTP scheme, curl might wrongly pass on the bearer token to the new target host. CVE-2025-14524 Impact The...

SUSE-SU-2026:20665-1 Security update for python311

This update for python311 fixes the following issues: - CVE-2025-11468: preserving parens when folding comments in email headers. bsc1257029 - CVE-2026-0672: rejects control characters in http cookies. bsc1257031 - CVE-2026-0865: rejecting control characters in wsgiref.headers.Headers, which coul...

USN-8018-2: Python regression

USN-8018-1 fixed vulnerabilities in python3. That update introduced regressions. The patches for CVE-2025-15366 and CVE-2025-15367 caused behavior regressions in IMAP and POP3 handling, which upstream chose to avoid by not backporting them. Additionally, the patch for CVE-2026-0865 incorrectly...

pybind: Improper use of Pybind

A flaw was found in Ceph. An attacker can allow Ceph to accept any certificate because no certificate context is passed via Pybind to the constructors imaplib.IMAP4SSL or smtplib.SMTPSSL. As a result, pybind pybind does not check the server's X.509 certificate, instead accepting any certificate...

AlmaLinux 8 : python3 (ALSA-2026:2128)

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:2128 advisory. cpython: wsgiref.headers.Headers allows header newline injection in Python CVE-2026-0865 cpython: IMAP command injection in user-controlled commands...

cpython: IMAP command injection in user-controlled commands

A flaw was found in the imaplib module in the Python standard library. The imaplib module does not reject control characters, such as newlines, in user-controlled input passed to IMAP commands. This issue allows an attacker to inject additional commands to be executed in the IMAP server...

BIT-PYTHON-2025-15366 IMAP command injection in user-controlled commands

The imaplib module, when passed a user-controlled command, can have additional commands injected using newlines. Mitigation rejects commands containing control characters...

CVE-2025-15366

A flaw was found in the imaplib module in the Python standard library. The imaplib module does not reject control characters, such as newlines, in user-controlled input passed to IMAP commands. This issue allows an attacker to inject additional commands to be executed in the IMAP server. Mitigati...