ALPINE-CVE-2026-27852

Source
https://security.alpinelinux.org/vuln/CVE-2026-27852
Import Source
https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-27852.json
JSON Data
https://api.osv.dev/v1/vulns/ALPINE-CVE-2026-27852
Upstream
  • CVE-2026-27852
Published
2026-08-28T12:16:27.330Z
Modified
2026-08-29T16:30:03.932228694Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

An attacker that can send mail to a user can craft a message whose headers contain a very large number of email addresses or MIME parameters, which causes excessive memory usage when the message is later parsed. The message is still delivered, but reading it over IMAP can exhaust the memory limit of the process and terminate it, causing denial of service for the affected user. Update to non-vulnerable version. No publicly available exploits are known.

References

Affected packages

Alpine:v3.24 / dovecot

Package

Name
dovecot
Purl
pkg:apk/alpine/dovecot?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.5-r0

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-27852.json"