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CVE-2026-27852

Опубликовано: 28 авг. 2026
Источник: ubuntu
Приоритет: medium
EPSS Низкий
CVSS3: 7.5

Описание

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.

РелизСтатусПримечание
devel

not-affected

1:2.4.4+dfsg1-2ubuntu4
esm-infra-legacy/trusty

needs-triage

esm-infra-legacy/xenial

needs-triage

esm-infra/bionic

needs-triage

esm-infra/focal

needs-triage

jammy

needs-triage

noble

needs-triage

resolute

needs-triage

stonking

not-affected

1:2.4.4+dfsg1-2ubuntu4
upstream

needs-triage

Показывать по

Ссылки на источники

EPSS

Процентиль: 37%
0.0043
Низкий

7.5 High

CVSS3

Связанные уязвимости

CVSS3: 7.5
redhat
2 месяца назад

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.

CVSS3: 7.5
nvd
2 месяца назад

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.

CVSS3: 7.5
debian
2 месяца назад

An attacker that can send mail to a user can craft a message whose hea ...

CVSS3: 7.5
github
2 месяца назад

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.

rocky
26 дней назад

Important: dovecot security update

EPSS

Процентиль: 37%
0.0043
Низкий

7.5 High

CVSS3