CVE-2026-40018
dovecot: None None None No publicly available exploits are known.
CVE-2026-40018 is fixed in 11 products on 1 platform, first by RHSA-2026:79371, released August 28, 2026. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
9.1
important
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0032
24th percentile
None None None No publicly available exploits are known.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| dovecot · Debian 12.15 (bookworm) | 1:2.3.19.1+dfsg1-2.1+deb12u7 | DEBIAN-CVE-2026-40018 | Sep 10, 2026 |
| dovecot · Debian 13.5 (trixie) | 1:2.4.1+dfsg1-6+deb13u7 | DEBIAN-CVE-2026-40018 | Sep 10, 2026 |
| dovecot · Debian 14 | 1:2.4.5+dfsg1-1 | DEBIAN-CVE-2026-40018 | Sep 10, 2026 |
| dovecot · Fedora 43 | 1:2.4.5-1.fc43 | FEDORA-2026-E8A6485109 | Sep 10, 2026 |
| dovecot · RHEL 10 | 2.3.21-19.el10_2.8 | RHSA-2026:79371 | Aug 28, 2026 |
| dovecot · RHEL 8 | 1:2.3.16-16.el8_10 | RHSA-2026:76763 | Oct 6, 2026 |
| dovecot · RHEL 9 | 1:2.3.16-18.el9_8.8 | RHSA-2026:80825 | Oct 13, 2026 |
| dovecot · almalinux 10 | 1:2.3.21-19.el10_2.8 | ALSA-2026:79371 | Oct 8, 2026 |
| dovecot · almalinux 8 | 1:2.3.16-16.el8_10 | ALSA-2026:76763 | Oct 6, 2026 |
| dovecot · almalinux 9 | 1:2.3.16-18.el9_8.8 | ALSA-2026:80825 | Nov 7, 2026 |
| dovecot · amzn 2023 | 1:2.3.20-1.amzn2023.0.4 | ALAS2023-2026-3109 | Sep 28, 2026 |
| dovecot · ol 10 | 1:2.3.21-19.el10_2.8 | ELSA-2026-79371 | Oct 8, 2026 |
| dovecot · ol 8 | 1:2.3.16-16.el8_10 | ELSA-2026-76763 | Oct 6, 2026 |
| dovecot · ol 9 | 1:2.3.16-18.el9_8.8 | ELSA-2026-80825 | Nov 7, 2026 |
| dovecot · rocky 10 | 1:2.3.21-19.el10_2.8 | RLSA-2026:79371 | Nov 7, 2026 |
| dovecot · rocky 8 | 1:2.3.16-16.el8_10 | RLSA-2026:76763 | Oct 7, 2026 |
| dovecot · rocky 9 | 1:2.3.16-18.el9_8.8 | RLSA-2026:80825 | Nov 7, 2026 |
| dovecot-debuginfo · Fedora 43 | 1:2.4.5-1.fc43 | FEDORA-2026-E8A6485109 | Sep 10, 2026 |
| dovecot-debuginfo · amzn 2023 | 1:2.3.20-1.amzn2023.0.4 | ALAS2023-2026-3109 | Sep 28, 2026 |
| dovecot-debugsource · Fedora 43 | 1:2.4.5-1.fc43 | FEDORA-2026-E8A6485109 | Sep 10, 2026 |
| dovecot-debugsource · amzn 2023 | 1:2.3.20-1.amzn2023.0.4 | ALAS2023-2026-3109 | Sep 28, 2026 |
| dovecot-devel · Fedora 43 | 1:2.4.5-1.fc43 | FEDORA-2026-E8A6485109 | Sep 10, 2026 |
| dovecot-devel · RHEL 8 | 1:2.3.16-16.el8_10 | RHSA-2026:76763 | Oct 6, 2026 |
| dovecot-devel · RHEL 9 | 1:2.3.16-18.el9_8.8 | RHSA-2026:80825 | Oct 13, 2026 |
| dovecot-devel · almalinux 10 | 1:2.3.21-19.el10_2.8 | ALSA-2026:79371 | Oct 8, 2026 |
| dovecot-devel · almalinux 8 | 1:2.3.16-16.el8_10 | ALSA-2026:76763 | Oct 6, 2026 |
| dovecot-devel · almalinux 9 | 1:2.3.16-18.el9_8.8 | ALSA-2026:80825 | Nov 7, 2026 |
| dovecot-devel · amzn 2023 | 1:2.3.20-1.amzn2023.0.4 | ALAS2023-2026-3109 | Sep 28, 2026 |
| dovecot-devel · ol 10 | 1:2.3.21-19.el10_2.8 | ELSA-2026-79371 | Oct 8, 2026 |
| dovecot-devel · ol 8 | 1:2.3.16-16.el8_10 | ELSA-2026-76763 | Oct 6, 2026 |
| dovecot-devel · ol 9 | 1:2.3.16-18.el9_8.8 | ELSA-2026-80825 | Nov 7, 2026 |
| dovecot-mysql · Fedora 43 | 1:2.4.5-1.fc43 | FEDORA-2026-E8A6485109 | Sep 10, 2026 |
| dovecot-mysql · RHEL 8 | 1:2.3.16-16.el8_10 | RHSA-2026:76763 | Oct 6, 2026 |
| dovecot-mysql · RHEL 9 | 1:2.3.16-18.el9_8.8 | RHSA-2026:80825 | Oct 13, 2026 |
| dovecot-mysql · almalinux 10 | 1:2.3.21-19.el10_2.8 | ALSA-2026:79371 | Oct 8, 2026 |
| dovecot-mysql · almalinux 8 | 1:2.3.16-16.el8_10 | ALSA-2026:76763 | Oct 6, 2026 |
| dovecot-mysql · almalinux 9 | 1:2.3.16-18.el9_8.8 | ALSA-2026:80825 | Nov 7, 2026 |
| dovecot-mysql · amzn 2023 | 1:2.3.20-1.amzn2023.0.4 | ALAS2023-2026-3109 | Sep 28, 2026 |
| dovecot-mysql · ol 10 | 1:2.3.21-19.el10_2.8 | ELSA-2026-79371 | Oct 8, 2026 |
| dovecot-mysql · ol 8 | 1:2.3.16-16.el8_10 | ELSA-2026-76763 | Oct 6, 2026 |
| dovecot-mysql · ol 9 | 1:2.3.16-18.el9_8.8 | ELSA-2026-80825 | Nov 7, 2026 |
| dovecot-mysql-debuginfo · Fedora 43 | 1:2.4.5-1.fc43 | FEDORA-2026-E8A6485109 | Sep 10, 2026 |
| dovecot-mysql-debuginfo · amzn 2023 | 1:2.3.20-1.amzn2023.0.4 | ALAS2023-2026-3109 | Sep 28, 2026 |
| dovecot-pgsql · Fedora 43 | 1:2.4.5-1.fc43 | FEDORA-2026-E8A6485109 | Sep 10, 2026 |
| dovecot-pgsql · RHEL 8 | 1:2.3.16-16.el8_10 | RHSA-2026:76763 | Oct 6, 2026 |
| dovecot-pgsql · RHEL 9 | 1:2.3.16-18.el9_8.8 | RHSA-2026:80825 | Oct 13, 2026 |
| dovecot-pgsql · almalinux 10 | 1:2.3.21-19.el10_2.8 | ALSA-2026:79371 | Oct 8, 2026 |
| dovecot-pgsql · almalinux 8 | 1:2.3.16-16.el8_10 | ALSA-2026:76763 | Oct 6, 2026 |
| dovecot-pgsql · almalinux 9 | 1:2.3.16-18.el9_8.8 | ALSA-2026:80825 | Nov 7, 2026 |
| dovecot-pgsql · amzn 2023 | 1:2.3.20-1.amzn2023.0.4 | ALAS2023-2026-3109 | Sep 28, 2026 |
| dovecot-pgsql · ol 10 | 1:2.3.21-19.el10_2.8 | ELSA-2026-79371 | Oct 8, 2026 |
| dovecot-pgsql · ol 8 | 1:2.3.16-16.el8_10 | ELSA-2026-76763 | Oct 6, 2026 |
| dovecot-pgsql · ol 9 | 1:2.3.16-18.el9_8.8 | ELSA-2026-80825 | Nov 7, 2026 |
| dovecot-pgsql-debuginfo · Fedora 43 | 1:2.4.5-1.fc43 | FEDORA-2026-E8A6485109 | Sep 10, 2026 |
| dovecot-pgsql-debuginfo · amzn 2023 | 1:2.3.20-1.amzn2023.0.4 | ALAS2023-2026-3109 | Sep 28, 2026 |
| dovecot-pigeonhole · Fedora 43 | 1:2.4.5-1.fc43 | FEDORA-2026-E8A6485109 | Sep 10, 2026 |
| dovecot-pigeonhole · RHEL 8 | 1:2.3.16-16.el8_10 | RHSA-2026:76763 | Oct 6, 2026 |
| dovecot-pigeonhole · RHEL 9 | 1:2.3.16-18.el9_8.8 | RHSA-2026:80825 | Oct 13, 2026 |
| dovecot-pigeonhole · almalinux 10 | 1:2.3.21-19.el10_2.8 | ALSA-2026:79371 | Oct 8, 2026 |
| dovecot-pigeonhole · almalinux 8 | 1:2.3.16-16.el8_10 | ALSA-2026:76763 | Oct 6, 2026 |
| dovecot-pigeonhole · almalinux 9 | 1:2.3.16-18.el9_8.8 | ALSA-2026:80825 | Nov 7, 2026 |
| dovecot-pigeonhole · amzn 2023 | 1:2.3.20-1.amzn2023.0.4 | ALAS2023-2026-3109 | Sep 28, 2026 |
| dovecot-pigeonhole · ol 10 | 1:2.3.21-19.el10_2.8 | ELSA-2026-79371 | Oct 8, 2026 |
| dovecot-pigeonhole · ol 8 | 1:2.3.16-16.el8_10 | ELSA-2026-76763 | Oct 6, 2026 |
| dovecot-pigeonhole · ol 9 | 1:2.3.16-18.el9_8.8 | ELSA-2026-80825 | Nov 7, 2026 |
| dovecot-pigeonhole-debuginfo · Fedora 43 | 1:2.4.5-1.fc43 | FEDORA-2026-E8A6485109 | Sep 10, 2026 |
| dovecot-pigeonhole-debuginfo · amzn 2023 | 1:2.3.20-1.amzn2023.0.4 | ALAS2023-2026-3109 | Sep 28, 2026 |
| dovecot24 · opensuse-leap 16.0 | 2.4.4-160000.2.1 | OPENSUSE-SU-2026:21720-1 | Sep 1, 2026 |
| dovecot24 · sles 16.0 | 2.4.4-160000.2.1 | SUSE-SU-2026:23595-1 | Sep 1, 2026 |
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