AZL-81710

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Import Source

https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-81710.json

JSON Data

https://api.osv.dev/v1/vulns/AZL-81710

Upstream

CVE-2026-27858

Published

2026-03-27T09:16:20Z

Modified

2026-08-30T05:24:52Z

Summary

CVE-2026-27858 affecting package dovecot 2.3.20-1

Details

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.

References

https://nvd.nist.gov/vuln/detail/CVE-2026-27858

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-81710.json"