UBUNTU-CVE-2026-84641

A malicious IMAP server can trigger use-after-free and heap-memory disclosure by sending a crafted ID response. Heap contents can ultimately be persisted to prefs.js. This vulnerability was fixed in Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2...

CVE-2026-84641

A malicious IMAP server can trigger use-after-free and heap-memory disclosure by sending a crafted ID response. Heap contents can ultimately be persisted to prefs.js. This vulnerability was fixed in Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2...

CVE-2026-84641

A flaw was found in Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: A malicious IMAP server can trigger use-after-free and heap-memory disclosure by sending a crafted ID response. Heap contents can ultimately be persisted to prefs.js...

CVE-2026-84641 Information disclosure due to malicious IMAP server response

A malicious IMAP server can trigger use-after-free and heap-memory disclosure by sending a crafted ID response. Heap contents can ultimately be persisted to prefs.js. This vulnerability was fixed in Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2...

CVE-2026-84641 Information disclosure due to malicious IMAP server response

A malicious IMAP server can trigger use-after-free and heap-memory disclosure by sending a crafted ID response. Heap contents can ultimately be persisted to prefs.js. This vulnerability was fixed in Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2...

CVE-2026-84641

A malicious IMAP server can trigger a use-after-free and heap-memory disclosure in Mozilla Thunderbird by sending a crafted ID response. This vulnerability allows heap contents to be persisted to prefs.js . The issue was addressed in Thunderbird 155 , Thunderbird 140.15 , and Thunderbird 153.2 . ...

CVE-2026-84641

A malicious IMAP server can trigger use-after-free and heap-memory disclosure by sending a crafted ID response. Heap contents can ultimately be persisted to prefs.js. This vulnerability was fixed in Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2...

CVE-2026-84641

A malicious IMAP server can trigger use-after-free and heap-memory disclosure by sending a crafted ID response. Heap contents can ultimately be persisted to prefs.js. This vulnerability was fixed in Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2...

SUSE-SU-2026:23595-1 Security update for dovecot24

This update for dovecot24 fixes the following issues: Update to 2.4.5. - CVE-2026-33263: submission-login: panic when mailmaxuseripconnections is reached bsc1276794. - CVE-2026-27852: DoS by sending mail with bad header bsc1276799. - CVE-2026-33604: SMTP smuggling via missing dot-stuffing after...

CVE-2026-42391

A flaw was found in Dovecot. An unauthenticated attacker can send an IMAP ID command with a very large number of parameters before logging in. This action causes the server to consume excessive memory and CPU resources, leading to the termination of login processes and other active connections...

CVE-2026-40203

A flaw was found in dovecot where, when IMAP compression is enabled, the system reuses the same compression state across responses within a session. This allows a remote attacker, who can send mail to a user and monitor the sizes of their IMAP traffic, to potentially deduce the content of small...

CVE-2026-73209

A flaw was found in Dovecot. An authenticated attacker can send specially crafted compressed data, leading to the affected process exhausting its stack and crashing. This termination of the process can result in degradation or a complete denial of service for the IMAP Internet Message Access...

CVE-2026-52687

A flaw was found in dovecot. A remote attacker with valid credentials can exploit this vulnerability by selecting a compression algorithm for the IMAP connection that requires a large amount of memory for decompression. By opening several such connections, the attacker can exhaust the process's...

CVE-2026-42392

A flaw was found in Dovecot. An attacker with valid credentials can send an invalid IMAP URLFETCH command, leading to the inclusion of uninitialized memory in the error response. This can disclose process memory contents to the client, potentially revealing sensitive data. Mitigation To mitigate...

CVE-2026-40017

A flaw was found in Dovecot. A remote attacker who can send mail to a user can craft a message header designed to cause collisions in an internal hash table. This manipulation forces the IMAP THREAD command to consume excessive CPU resources, leading to degradation or a complete denial of service...

CVE-2026-40015

A flaw was found in Dovecot's imap-hibernate service. An authenticated attacker can open numerous connections and send malformed commands, leading to an out-of-bounds read. This can intermittently crash the process, interrupting hibernated IMAP sessions and causing a denial of service for affecte...

CVE-2026-40014

A flaw was found in Dovecot. A remote attacker, by sending a specially crafted email message header to a user, can cause the Internet Message Access Protocol IMAP THREAD command to consume excessive CPU resources. When a mail client processes this message, it can lead to degradation or a denial o...

CVE-2026-33607

A flaw was found in Dovecot. An authenticated attacker can exploit a vulnerability in the IMAP LIST command to consume excessive CPU resources. This can lead to a degradation of service or a complete denial of service DoS for the IMAP server, impacting the availability of email services. Mitigati...

MGASA-2026-0358 Updated roundcubemail packages fix security vulnerabilities

Add basic validation for content proxied by the css proxy Fix SSRF bypass via specific local address URLs using 100.64.0.0/10 and fe80::/10 nets, reported by Dmytro Ivanenko Fix SSRF filter bypass via various forms of nip.io/sslip.io hostnames evading islocalurl check, reported by Milan Hoppe Fix...

Updated roundcubemail packages fix security vulnerabilities

Add basic validation for content proxied by the css proxy Fix SSRF bypass via specific local address URLs using 100.64.0.0/10 and fe80::/10 nets, reported by Dmytro Ivanenko Fix SSRF filter bypass via various forms of nip.io/sslip.io hostnames evading islocalurl check, reported by Milan Hoppe Fix...