vulnerability
Debian: CVE-2026-27858: dovecot -- security update
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:L/Au:N/C:N/I:N/A:C) | Apr 7, 2026 | Apr 7, 2026 | Apr 7, 2026 |
Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
Apr 7, 2026
Added
Apr 7, 2026
Modified
Apr 7, 2026
Description
Attacker can send a specifically crafted message before authentication that causes managesieve to allocate large amount of memory.
Attacker can force managesieve-login to be unavailable by repeatedly crashing the process. Protect access to managesieve protocol, or install fixed version. No publicly available exploits are known.
Solution
debian-upgrade-dovecot
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