Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-81713.json
JSON Data
https://api.osv.dev/v1/vulns/AZL-81713
Upstream
Published
2026-03-27T09:16:20Z
Modified
2026-09-01T05:26:35Z
Summary
CVE-2026-27859 affecting package dovecot 2.3.20-1
Details

A mail message containing excessive amount of RFC 2231 MIME parameters causes LMTP to use too much CPU. A suitably formatted mail message causes mail delivery process to consume large amounts of CPU time. Use MTA capabilities to limit RFC 2231 MIME parameters in mail messages, or upgrade to fixed version where the processing is limited. No publicly available exploits are known.

References

Affected packages

Azure Linux:3 / dovecot

Package

Name
dovecot
Purl
pkg:rpm/azure-linux/dovecot

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Last affected
2.3.20-1

Database specific

source
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-81713.json"