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CVE-2026-43617

Опубликовано: 20 мая 2026
Источник: ubuntu
Приоритет: medium
EPSS Низкий
CVSS3: 4.8

Описание

Rsync version 3.4.2 and prior contain an authorization bypass vulnerability in the rsync daemon's hostname-based access control list enforcement when configured with chroot. Attackers can bypass hostname-based deny rules by controlling the PTR record for their source IP address, allowing connections from hostnames that administrators intended to deny when reverse DNS resolution fails and defaults to UNKNOWN.

РелизСтатусПримечание
devel

not-affected

3.4.4+ds1-1
esm-infra-legacy/trusty

released

3.1.0-2ubuntu0.4+esm3
esm-infra-legacy/xenial

released

3.1.1-3ubuntu1.3+esm5
esm-infra/bionic

released

3.1.2-2.1ubuntu1.6+esm3
esm-infra/focal

released

3.1.3-8ubuntu0.9+esm1
esm-infra/xenial

ignored

end of ESM support, was needs-triage
jammy

released

3.2.7-0ubuntu0.22.04.6
noble

released

3.2.7-1ubuntu1.4
questing

released

3.4.1+ds1-5ubuntu1.2
resolute

released

3.4.1+ds1-7ubuntu0.2

Показывать по

EPSS

Процентиль: 20%
0.00282
Низкий

4.8 Medium

CVSS3

Связанные уязвимости

CVSS3: 4.2
redhat
3 месяца назад

Rsync version 3.4.2 and prior contain an authorization bypass vulnerability in the rsync daemon's hostname-based access control list enforcement when configured with chroot. Attackers can bypass hostname-based deny rules by controlling the PTR record for their source IP address, allowing connections from hostnames that administrators intended to deny when reverse DNS resolution fails and defaults to UNKNOWN.

CVSS3: 4.8
nvd
3 месяца назад

Rsync version 3.4.2 and prior contain an authorization bypass vulnerability in the rsync daemon's hostname-based access control list enforcement when configured with chroot. Attackers can bypass hostname-based deny rules by controlling the PTR record for their source IP address, allowing connections from hostnames that administrators intended to deny when reverse DNS resolution fails and defaults to UNKNOWN.

CVSS3: 4.8
msrc
3 месяца назад

Rsync < 3.4.3 Authorization Bypass via Hostname Resolution

CVSS3: 4.8
debian
3 месяца назад

Rsync version3.4.2 and prior contain an authorization bypass vulnerabi ...

CVSS3: 4.8
github
3 месяца назад

Rsync version 3.4.2 and prior contain an authorization bypass vulnerability in the rsync daemon's hostname-based access control list enforcement when configured with chroot. Attackers can bypass hostname-based deny rules by controlling the PTR record for their source IP address, allowing connections from hostnames that administrators intended to deny when reverse DNS resolution fails and defaults to UNKNOWN.

EPSS

Процентиль: 20%
0.00282
Низкий

4.8 Medium

CVSS3

Уязвимость CVE-2026-43617