# CVE-2026-40016: dovecot: Attacker can upload a malicious Sieve script over ManageSieve service (or locally) to bypass configured CPU time limi...

CVE-2026-40016 is fixed in 19 products on 1 platform, first by dovecot-auth-lua 1:2.3.16+dfsg1-3ubuntu2.9, released May 12, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-40016
- Priority: Routine
- CVSS: 6.5 (medium)
- EPSS: 0.0034
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 12, 2026

## Description

Attacker can upload a malicious Sieve script over ManageSieve service (or locally) to bypass configured CPU time limits for Sieve up to 130 times of the configured limit. Attacker can use this to degrade server performance and bypass configured CPU time limits for Sieve scripts. Install fixed version, or alternatively prevent direct access to Sieve scripts via ManageSieve or local access. No publicly available exploits are known.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | dovecot Debian 12.15 (bookworm) | 1:2.3.19.1+dfsg1-2.1+deb12u6 | [DEBIAN-CVE-2026-40016](https://patchblox.com/security/data/fix/linux/debian-cve-2026-40016.md) | May 27, 2026 |
| Linux | dovecot Debian 13.5 (trixie) | 1:2.4.1+dfsg1-6+deb13u6 | [DEBIAN-CVE-2026-40016](https://patchblox.com/security/data/fix/linux/debian-cve-2026-40016.md) | May 27, 2026 |
| Linux | dovecot Debian 14 | 1:2.4.4+dfsg1-1 | [DEBIAN-CVE-2026-40016](https://patchblox.com/security/data/fix/linux/debian-cve-2026-40016.md) | May 27, 2026 |
| Linux | dovecot-auth-lua Ubuntu 22.04.1 LTS (jammy) | 1:2.3.16+dfsg1-3ubuntu2.9 | [dovecot-auth-lua 1:2.3.16+dfsg1-3ubuntu2.9](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-dovecot-auth-lua-1-2.3.16-dfsg1-3ubuntu2.9.md) | May 12, 2026 |
| Linux | dovecot-auth-lua Ubuntu 24.04.5 LTS (noble) | 1:2.3.21+dfsg1-2ubuntu6.5 | [dovecot-auth-lua 1:2.3.21+dfsg1-2ubuntu6.5](https://patchblox.com/security/data/fix/linux/ubuntu-noble-dovecot-auth-lua-1-2.3.21-dfsg1-2ubuntu6.5.md) | May 12, 2026 |
| Linux | dovecot-auth-lua Ubuntu 25.10 (questing) | 1:2.4.1+dfsg1-5ubuntu4.2 | [dovecot-auth-lua 1:2.4.1+dfsg1-5ubuntu4.2](https://patchblox.com/security/data/fix/linux/ubuntu-questing-dovecot-auth-lua-1-2.4.1-dfsg1-5ubuntu4.2.md) | May 12, 2026 |
| Linux | dovecot-auth-lua Ubuntu 26.04.1 LTS (resolute) | 1:2.4.2+dfsg1-3ubuntu2.1 | [dovecot-auth-lua 1:2.4.2+dfsg1-3ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-dovecot-auth-lua-1-2.4.2-dfsg1-3ubuntu2.1.md) | May 12, 2026 |
| Linux | dovecot-core Ubuntu 22.04.1 LTS (jammy) | 1:2.3.16+dfsg1-3ubuntu2.9 | [dovecot-core 1:2.3.16+dfsg1-3ubuntu2.9](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-dovecot-core-1-2.3.16-dfsg1-3ubuntu2.9.md) | May 12, 2026 |
| Linux | dovecot-core Ubuntu 24.04.5 LTS (noble) | 1:2.3.21+dfsg1-2ubuntu6.5 | [dovecot-core 1:2.3.21+dfsg1-2ubuntu6.5](https://patchblox.com/security/data/fix/linux/ubuntu-noble-dovecot-core-1-2.3.21-dfsg1-2ubuntu6.5.md) | May 12, 2026 |
| Linux | dovecot-core Ubuntu 25.10 (questing) | 1:2.4.1+dfsg1-5ubuntu4.2 | [dovecot-core 1:2.4.1+dfsg1-5ubuntu4.2](https://patchblox.com/security/data/fix/linux/ubuntu-questing-dovecot-core-1-2.4.1-dfsg1-5ubuntu4.2.md) | May 12, 2026 |
| Linux | dovecot-core Ubuntu 26.04.1 LTS (resolute) | 1:2.4.2+dfsg1-3ubuntu2.1 | [dovecot-core 1:2.4.2+dfsg1-3ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-dovecot-core-1-2.4.2-dfsg1-3ubuntu2.1.md) | May 12, 2026 |
| Linux | dovecot-flatcurve Ubuntu 25.10 (questing) | 1:2.4.1+dfsg1-5ubuntu4.2 | [dovecot-flatcurve 1:2.4.1+dfsg1-5ubuntu4.2](https://patchblox.com/security/data/fix/linux/ubuntu-questing-dovecot-flatcurve-1-2.4.1-dfsg1-5ubuntu4.2.md) | May 12, 2026 |
| Linux | dovecot-flatcurve Ubuntu 26.04.1 LTS (resolute) | 1:2.4.2+dfsg1-3ubuntu2.1 | [dovecot-flatcurve 1:2.4.2+dfsg1-3ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-dovecot-flatcurve-1-2.4.2-dfsg1-3ubuntu2.1.md) | May 12, 2026 |
| Linux | dovecot-gssapi Ubuntu 22.04.1 LTS (jammy) | 1:2.3.16+dfsg1-3ubuntu2.9 | [dovecot-gssapi 1:2.3.16+dfsg1-3ubuntu2.9](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-dovecot-gssapi-1-2.3.16-dfsg1-3ubuntu2.9.md) | May 12, 2026 |
| Linux | dovecot-gssapi Ubuntu 24.04.5 LTS (noble) | 1:2.3.21+dfsg1-2ubuntu6.5 | [dovecot-gssapi 1:2.3.21+dfsg1-2ubuntu6.5](https://patchblox.com/security/data/fix/linux/ubuntu-noble-dovecot-gssapi-1-2.3.21-dfsg1-2ubuntu6.5.md) | May 12, 2026 |
| Linux | dovecot-gssapi Ubuntu 25.10 (questing) | 1:2.4.1+dfsg1-5ubuntu4.2 | [dovecot-gssapi 1:2.4.1+dfsg1-5ubuntu4.2](https://patchblox.com/security/data/fix/linux/ubuntu-questing-dovecot-gssapi-1-2.4.1-dfsg1-5ubuntu4.2.md) | May 12, 2026 |
| Linux | dovecot-gssapi Ubuntu 26.04.1 LTS (resolute) | 1:2.4.2+dfsg1-3ubuntu2.1 | [dovecot-gssapi 1:2.4.2+dfsg1-3ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-dovecot-gssapi-1-2.4.2-dfsg1-3ubuntu2.1.md) | May 12, 2026 |
| Linux | dovecot-imapd Ubuntu 22.04.1 LTS (jammy) | 1:2.3.16+dfsg1-3ubuntu2.9 | [dovecot-imapd 1:2.3.16+dfsg1-3ubuntu2.9](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-dovecot-imapd-1-2.3.16-dfsg1-3ubuntu2.9.md) | May 12, 2026 |
| Linux | dovecot-imapd Ubuntu 24.04.5 LTS (noble) | 1:2.3.21+dfsg1-2ubuntu6.5 | [dovecot-imapd 1:2.3.21+dfsg1-2ubuntu6.5](https://patchblox.com/security/data/fix/linux/ubuntu-noble-dovecot-imapd-1-2.3.21-dfsg1-2ubuntu6.5.md) | May 12, 2026 |
| Linux | dovecot-imapd Ubuntu 25.10 (questing) | 1:2.4.1+dfsg1-5ubuntu4.2 | [dovecot-imapd 1:2.4.1+dfsg1-5ubuntu4.2](https://patchblox.com/security/data/fix/linux/ubuntu-questing-dovecot-imapd-1-2.4.1-dfsg1-5ubuntu4.2.md) | May 12, 2026 |
| Linux | dovecot-imapd Ubuntu 26.04.1 LTS (resolute) | 1:2.4.2+dfsg1-3ubuntu2.1 | [dovecot-imapd 1:2.4.2+dfsg1-3ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-dovecot-imapd-1-2.4.2-dfsg1-3ubuntu2.1.md) | May 12, 2026 |
| Linux | dovecot-ldap Ubuntu 22.04.1 LTS (jammy) | 1:2.3.16+dfsg1-3ubuntu2.9 | [dovecot-ldap 1:2.3.16+dfsg1-3ubuntu2.9](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-dovecot-ldap-1-2.3.16-dfsg1-3ubuntu2.9.md) | May 12, 2026 |
| Linux | dovecot-ldap Ubuntu 24.04.5 LTS (noble) | 1:2.3.21+dfsg1-2ubuntu6.5 | [dovecot-ldap 1:2.3.21+dfsg1-2ubuntu6.5](https://patchblox.com/security/data/fix/linux/ubuntu-noble-dovecot-ldap-1-2.3.21-dfsg1-2ubuntu6.5.md) | May 12, 2026 |
| Linux | dovecot-ldap Ubuntu 25.10 (questing) | 1:2.4.1+dfsg1-5ubuntu4.2 | [dovecot-ldap 1:2.4.1+dfsg1-5ubuntu4.2](https://patchblox.com/security/data/fix/linux/ubuntu-questing-dovecot-ldap-1-2.4.1-dfsg1-5ubuntu4.2.md) | May 12, 2026 |
| Linux | dovecot-ldap Ubuntu 26.04.1 LTS (resolute) | 1:2.4.2+dfsg1-3ubuntu2.1 | [dovecot-ldap 1:2.4.2+dfsg1-3ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-dovecot-ldap-1-2.4.2-dfsg1-3ubuntu2.1.md) | May 12, 2026 |
| Linux | dovecot-lmtpd Ubuntu 22.04.1 LTS (jammy) | 1:2.3.16+dfsg1-3ubuntu2.9 | [dovecot-lmtpd 1:2.3.16+dfsg1-3ubuntu2.9](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-dovecot-lmtpd-1-2.3.16-dfsg1-3ubuntu2.9.md) | May 12, 2026 |
| Linux | dovecot-lmtpd Ubuntu 24.04.5 LTS (noble) | 1:2.3.21+dfsg1-2ubuntu6.5 | [dovecot-lmtpd 1:2.3.21+dfsg1-2ubuntu6.5](https://patchblox.com/security/data/fix/linux/ubuntu-noble-dovecot-lmtpd-1-2.3.21-dfsg1-2ubuntu6.5.md) | May 12, 2026 |
| Linux | dovecot-lmtpd Ubuntu 25.10 (questing) | 1:2.4.1+dfsg1-5ubuntu4.2 | [dovecot-lmtpd 1:2.4.1+dfsg1-5ubuntu4.2](https://patchblox.com/security/data/fix/linux/ubuntu-questing-dovecot-lmtpd-1-2.4.1-dfsg1-5ubuntu4.2.md) | May 12, 2026 |
| Linux | dovecot-lmtpd Ubuntu 26.04.1 LTS (resolute) | 1:2.4.2+dfsg1-3ubuntu2.1 | [dovecot-lmtpd 1:2.4.2+dfsg1-3ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-dovecot-lmtpd-1-2.4.2-dfsg1-3ubuntu2.1.md) | May 12, 2026 |
| Linux | dovecot-lucene Ubuntu 22.04.1 LTS (jammy) | 1:2.3.16+dfsg1-3ubuntu2.9 | [dovecot-lucene 1:2.3.16+dfsg1-3ubuntu2.9](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-dovecot-lucene-1-2.3.16-dfsg1-3ubuntu2.9.md) | May 12, 2026 |
| Linux | dovecot-managesieved Ubuntu 22.04.1 LTS (jammy) | 1:2.3.16+dfsg1-3ubuntu2.9 | [dovecot-managesieved 1:2.3.16+dfsg1-3ubuntu2.9](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-dovecot-managesieved-1-2.3.16-dfsg1-3ubuntu2.9.md) | May 12, 2026 |
| Linux | dovecot-managesieved Ubuntu 24.04.5 LTS (noble) | 1:2.3.21+dfsg1-2ubuntu6.5 | [dovecot-managesieved 1:2.3.21+dfsg1-2ubuntu6.5](https://patchblox.com/security/data/fix/linux/ubuntu-noble-dovecot-managesieved-1-2.3.21-dfsg1-2ubuntu6.5.md) | May 12, 2026 |
| Linux | dovecot-managesieved Ubuntu 25.10 (questing) | 1:2.4.1+dfsg1-5ubuntu4.2 | [dovecot-managesieved 1:2.4.1+dfsg1-5ubuntu4.2](https://patchblox.com/security/data/fix/linux/ubuntu-questing-dovecot-managesieved-1-2.4.1-dfsg1-5ubuntu4.2.md) | May 12, 2026 |
| Linux | dovecot-managesieved Ubuntu 26.04.1 LTS (resolute) | 1:2.4.2+dfsg1-3ubuntu2.1 | [dovecot-managesieved 1:2.4.2+dfsg1-3ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-dovecot-managesieved-1-2.4.2-dfsg1-3ubuntu2.1.md) | May 12, 2026 |
| Linux | dovecot-mysql Ubuntu 22.04.1 LTS (jammy) | 1:2.3.16+dfsg1-3ubuntu2.9 | [dovecot-mysql 1:2.3.16+dfsg1-3ubuntu2.9](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-dovecot-mysql-1-2.3.16-dfsg1-3ubuntu2.9.md) | May 12, 2026 |
| Linux | dovecot-mysql Ubuntu 24.04.5 LTS (noble) | 1:2.3.21+dfsg1-2ubuntu6.5 | [dovecot-mysql 1:2.3.21+dfsg1-2ubuntu6.5](https://patchblox.com/security/data/fix/linux/ubuntu-noble-dovecot-mysql-1-2.3.21-dfsg1-2ubuntu6.5.md) | May 12, 2026 |
| Linux | dovecot-mysql Ubuntu 25.10 (questing) | 1:2.4.1+dfsg1-5ubuntu4.2 | [dovecot-mysql 1:2.4.1+dfsg1-5ubuntu4.2](https://patchblox.com/security/data/fix/linux/ubuntu-questing-dovecot-mysql-1-2.4.1-dfsg1-5ubuntu4.2.md) | May 12, 2026 |
| Linux | dovecot-mysql Ubuntu 26.04.1 LTS (resolute) | 1:2.4.2+dfsg1-3ubuntu2.1 | [dovecot-mysql 1:2.4.2+dfsg1-3ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-dovecot-mysql-1-2.4.2-dfsg1-3ubuntu2.1.md) | May 12, 2026 |
| Linux | dovecot-pgsql Ubuntu 22.04.1 LTS (jammy) | 1:2.3.16+dfsg1-3ubuntu2.9 | [dovecot-pgsql 1:2.3.16+dfsg1-3ubuntu2.9](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-dovecot-pgsql-1-2.3.16-dfsg1-3ubuntu2.9.md) | May 12, 2026 |
| Linux | dovecot-pgsql Ubuntu 24.04.5 LTS (noble) | 1:2.3.21+dfsg1-2ubuntu6.5 | [dovecot-pgsql 1:2.3.21+dfsg1-2ubuntu6.5](https://patchblox.com/security/data/fix/linux/ubuntu-noble-dovecot-pgsql-1-2.3.21-dfsg1-2ubuntu6.5.md) | May 12, 2026 |
| Linux | dovecot-pgsql Ubuntu 25.10 (questing) | 1:2.4.1+dfsg1-5ubuntu4.2 | [dovecot-pgsql 1:2.4.1+dfsg1-5ubuntu4.2](https://patchblox.com/security/data/fix/linux/ubuntu-questing-dovecot-pgsql-1-2.4.1-dfsg1-5ubuntu4.2.md) | May 12, 2026 |
| Linux | dovecot-pgsql Ubuntu 26.04.1 LTS (resolute) | 1:2.4.2+dfsg1-3ubuntu2.1 | [dovecot-pgsql 1:2.4.2+dfsg1-3ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-dovecot-pgsql-1-2.4.2-dfsg1-3ubuntu2.1.md) | May 12, 2026 |
| Linux | dovecot-pop3d Ubuntu 22.04.1 LTS (jammy) | 1:2.3.16+dfsg1-3ubuntu2.9 | [dovecot-pop3d 1:2.3.16+dfsg1-3ubuntu2.9](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-dovecot-pop3d-1-2.3.16-dfsg1-3ubuntu2.9.md) | May 12, 2026 |
| Linux | dovecot-pop3d Ubuntu 24.04.5 LTS (noble) | 1:2.3.21+dfsg1-2ubuntu6.5 | [dovecot-pop3d 1:2.3.21+dfsg1-2ubuntu6.5](https://patchblox.com/security/data/fix/linux/ubuntu-noble-dovecot-pop3d-1-2.3.21-dfsg1-2ubuntu6.5.md) | May 12, 2026 |
| Linux | dovecot-pop3d Ubuntu 25.10 (questing) | 1:2.4.1+dfsg1-5ubuntu4.2 | [dovecot-pop3d 1:2.4.1+dfsg1-5ubuntu4.2](https://patchblox.com/security/data/fix/linux/ubuntu-questing-dovecot-pop3d-1-2.4.1-dfsg1-5ubuntu4.2.md) | May 12, 2026 |
| Linux | dovecot-pop3d Ubuntu 26.04.1 LTS (resolute) | 1:2.4.2+dfsg1-3ubuntu2.1 | [dovecot-pop3d 1:2.4.2+dfsg1-3ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-dovecot-pop3d-1-2.4.2-dfsg1-3ubuntu2.1.md) | May 12, 2026 |
| Linux | dovecot-sieve Ubuntu 22.04.1 LTS (jammy) | 1:2.3.16+dfsg1-3ubuntu2.9 | [dovecot-sieve 1:2.3.16+dfsg1-3ubuntu2.9](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-dovecot-sieve-1-2.3.16-dfsg1-3ubuntu2.9.md) | May 12, 2026 |
| Linux | dovecot-sieve Ubuntu 24.04.5 LTS (noble) | 1:2.3.21+dfsg1-2ubuntu6.5 | [dovecot-sieve 1:2.3.21+dfsg1-2ubuntu6.5](https://patchblox.com/security/data/fix/linux/ubuntu-noble-dovecot-sieve-1-2.3.21-dfsg1-2ubuntu6.5.md) | May 12, 2026 |
| Linux | dovecot-sieve Ubuntu 25.10 (questing) | 1:2.4.1+dfsg1-5ubuntu4.2 | [dovecot-sieve 1:2.4.1+dfsg1-5ubuntu4.2](https://patchblox.com/security/data/fix/linux/ubuntu-questing-dovecot-sieve-1-2.4.1-dfsg1-5ubuntu4.2.md) | May 12, 2026 |
| Linux | dovecot-sieve Ubuntu 26.04.1 LTS (resolute) | 1:2.4.2+dfsg1-3ubuntu2.1 | [dovecot-sieve 1:2.4.2+dfsg1-3ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-dovecot-sieve-1-2.4.2-dfsg1-3ubuntu2.1.md) | May 12, 2026 |
| Linux | dovecot-solr Ubuntu 22.04.1 LTS (jammy) | 1:2.3.16+dfsg1-3ubuntu2.9 | [dovecot-solr 1:2.3.16+dfsg1-3ubuntu2.9](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-dovecot-solr-1-2.3.16-dfsg1-3ubuntu2.9.md) | May 12, 2026 |
| Linux | dovecot-solr Ubuntu 24.04.5 LTS (noble) | 1:2.3.21+dfsg1-2ubuntu6.5 | [dovecot-solr 1:2.3.21+dfsg1-2ubuntu6.5](https://patchblox.com/security/data/fix/linux/ubuntu-noble-dovecot-solr-1-2.3.21-dfsg1-2ubuntu6.5.md) | May 12, 2026 |
| Linux | dovecot-solr Ubuntu 25.10 (questing) | 1:2.4.1+dfsg1-5ubuntu4.2 | [dovecot-solr 1:2.4.1+dfsg1-5ubuntu4.2](https://patchblox.com/security/data/fix/linux/ubuntu-questing-dovecot-solr-1-2.4.1-dfsg1-5ubuntu4.2.md) | May 12, 2026 |
| Linux | dovecot-solr Ubuntu 26.04.1 LTS (resolute) | 1:2.4.2+dfsg1-3ubuntu2.1 | [dovecot-solr 1:2.4.2+dfsg1-3ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-dovecot-solr-1-2.4.2-dfsg1-3ubuntu2.1.md) | May 12, 2026 |
| Linux | dovecot-sqlite Ubuntu 22.04.1 LTS (jammy) | 1:2.3.16+dfsg1-3ubuntu2.9 | [dovecot-sqlite 1:2.3.16+dfsg1-3ubuntu2.9](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-dovecot-sqlite-1-2.3.16-dfsg1-3ubuntu2.9.md) | May 12, 2026 |
| Linux | dovecot-sqlite Ubuntu 24.04.5 LTS (noble) | 1:2.3.21+dfsg1-2ubuntu6.5 | [dovecot-sqlite 1:2.3.21+dfsg1-2ubuntu6.5](https://patchblox.com/security/data/fix/linux/ubuntu-noble-dovecot-sqlite-1-2.3.21-dfsg1-2ubuntu6.5.md) | May 12, 2026 |
| Linux | dovecot-sqlite Ubuntu 25.10 (questing) | 1:2.4.1+dfsg1-5ubuntu4.2 | [dovecot-sqlite 1:2.4.1+dfsg1-5ubuntu4.2](https://patchblox.com/security/data/fix/linux/ubuntu-questing-dovecot-sqlite-1-2.4.1-dfsg1-5ubuntu4.2.md) | May 12, 2026 |
| Linux | dovecot-sqlite Ubuntu 26.04.1 LTS (resolute) | 1:2.4.2+dfsg1-3ubuntu2.1 | [dovecot-sqlite 1:2.4.2+dfsg1-3ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-dovecot-sqlite-1-2.4.2-dfsg1-3ubuntu2.1.md) | May 12, 2026 |
| Linux | dovecot-submissiond Ubuntu 22.04.1 LTS (jammy) | 1:2.3.16+dfsg1-3ubuntu2.9 | [dovecot-submissiond 1:2.3.16+dfsg1-3ubuntu2.9](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-dovecot-submissiond-1-2.3.16-dfsg1-3ubuntu2.9.md) | May 12, 2026 |
| Linux | dovecot-submissiond Ubuntu 24.04.5 LTS (noble) | 1:2.3.21+dfsg1-2ubuntu6.5 | [dovecot-submissiond 1:2.3.21+dfsg1-2ubuntu6.5](https://patchblox.com/security/data/fix/linux/ubuntu-noble-dovecot-submissiond-1-2.3.21-dfsg1-2ubuntu6.5.md) | May 12, 2026 |
| Linux | dovecot-submissiond Ubuntu 25.10 (questing) | 1:2.4.1+dfsg1-5ubuntu4.2 | [dovecot-submissiond 1:2.4.1+dfsg1-5ubuntu4.2](https://patchblox.com/security/data/fix/linux/ubuntu-questing-dovecot-submissiond-1-2.4.1-dfsg1-5ubuntu4.2.md) | May 12, 2026 |
| Linux | dovecot-submissiond Ubuntu 26.04.1 LTS (resolute) | 1:2.4.2+dfsg1-3ubuntu2.1 | [dovecot-submissiond 1:2.4.2+dfsg1-3ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-dovecot-submissiond-1-2.4.2-dfsg1-3ubuntu2.1.md) | May 12, 2026 |
| Linux | dovecot23 sles 15.6 | 2.3.21.1-150200.76.1 | [SUSE-SU-2026:4139-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4139-1.md) | Sep 14, 2026 |
| Linux | dovecot23 sles 15.7 | 2.3.21.1-150200.76.1 | [SUSE-SU-2026:4139-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4139-1.md) | Sep 14, 2026 |
| Linux | dovecot24 opensuse-leap 16.0 | 2.4.4-160000.1.1 | [OPENSUSE-SU-2026:21109-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21109-1.md) | Jun 19, 2026 |
| Linux | dovecot24 sles 16.0 | 2.4.4-160000.1.1 | [SUSE-SU-2026:22185-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22185-1.md) | Jun 19, 2026 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

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