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Latest CVEs · RSS

• CVE-2026-73209 2026-08-28 · CVSS 6.5
  An attacker that has valid credentials can send crafted compressed data that causes the affected process to exhaust its stack and crash. The affected process is
• CVE-2026-73208 2026-08-28 · CVSS 7.4
  An attacker that holds a token intended for a different purpose can authenticate, because when an OAuth2 token response does not contain a scope claim, the audi
• CVE-2026-52687 2026-08-28 · CVSS 6.5
  An attacker that has valid credentials can select a compression algorithm for the IMAP connection whose decompression state requires a large amount of memory, a
• CVE-2026-52681 2026-08-28 · CVSS 3.1
  Sieve CPU resource usage is tracked in the compiled script, so an attacker that has valid credentials can reset the accounting by repeatedly changing the active
• CVE-2026-42395 2026-08-28 · CVSS 4.3
  A host listed as a trusted proxy can send forwarding information containing a NUL byte, which crashes the login process on the following login attempt. The logi
• CVE-2026-42393 2026-08-28 · CVSS 3.1
  The comparison used for the doveadm password and API key is not fully timing safe and can reveal the length of the configured secret. An attacker with access to
• CVE-2026-42392 2026-08-28 · CVSS 4.3
  An attacker that has valid credentials can send an invalid IMAP URLFETCH command, which causes uninitialized memory to be included in the error response returne
• CVE-2026-42391 2026-08-28 · CVSS 7.5
  An unauthenticated attacker can send an IMAP ID command with a very large number of parameters before logging in, which causes memory and CPU usage to grow disp
• CVE-2026-42008 2026-08-28 · CVSS 4.3
  Forwarding information received from a host listed as a trusted proxy is not kept separate from Dovecot's own authentication fields, so a value sent by that hos
• CVE-2026-42007 2026-08-28 · CVSS 9.1
  An attacker that has valid credentials can use a Sieve script with the editheader extension to trigger a use-after-free in the mail editing code, and to write m
• CVE-2026-40205 2026-08-28 · CVSS 5.9
  An attacker that holds an OAuth2 token granting only part of the required scopes can authenticate, because when more than one scope is required in the configura
• CVE-2026-40204 2026-08-28 · CVSS 3.1
  None None None No publicly available exploits are known.
• CVE-2026-40203 2026-08-28 · CVSS 3.7
  When IMAP compression is enabled, the same compression state is reused across responses in a session, so response sizes depend on both attacker-supplied mail an
• CVE-2026-40019 2026-08-28 · CVSS 5.9
  An unauthenticated attacker can send a truncated quoted argument to the ManageSieve login process, which makes it spin in an infinite loop consuming CPU. This c
• CVE-2026-40018 2026-08-28 · CVSS 7.4
  None None None No publicly available exploits are known.
• CVE-2026-40017 2026-08-28 · CVSS 6.5
  An attacker that can send mail to a user can craft a message header whose values are chosen to collide in an internal hash table, which makes the IMAP THREAD co
• CVE-2026-40015 2026-08-28 · CVSS 4.3
  An attacker that has valid credentials can open many connections to the imap-hibernate service and send invalid commands, which can intermittently cause an out-
• CVE-2026-40014 2026-08-28 · CVSS 6.5
  An attacker that can send mail to a user can craft a message header that makes the IMAP THREAD command consume CPU disproportionate to the size of the message.
• CVE-2026-40013 2026-08-28 · CVSS 4.3
  An attacker that has valid credentials can submit a Sieve script containing an extreme numeric literal, which causes an out-of-bounds write when the ManageSieve
• CVE-2026-33607 2026-08-28 · CVSS 4.3
  An attacker that has valid credentials can use IMAP LIST command to consume CPU. This can cause degradation or denial of service for IMAP. Monitor system for ab
• CVE-2026-33606 2026-08-28 · CVSS 4.8
  Mail content stored by a user can be crafted so that it is interpreted as dsync protocol commands when an administrator later runs dsync with the stream protoco
• CVE-2026-33605 2026-08-28 · CVSS 7.5
  An unauthenticated attacker can crash the ManageSieve login process by sending a small malformed command before authenticating. If running in high-security mode
• CVE-2026-33604 2026-08-28 · CVSS 5.9
  An attacker that can get Dovecot to relay a message, for example through Sieve redirect or submission relay, can use a crafted line ending in the message body t
• CVE-2026-33263 2026-08-28 · CVSS 4.3
  When mail_max_userip_connections is set (default 10) and reached, submission-login can crash with epoll() panic caused by file descriptor handling issues. If ru
• CVE-2026-27852 2026-08-28 · CVSS 7.5
  An attacker that can send mail to a user can craft a message whose headers contain a very large number of email addresses or MIME parameters, which causes exces