ALT-PU-2026-11033-2

Обновление пакета nats-server в ветке sisyphus

Версия2.14.2-alt1

Задание#420609

Опубликовано2026-07-16

Макс. серьёзностьHIGH

Серьёзность:

Закрытые проблемы (6)

HIGH8.8

Уязвимость сервера системы обмена сообщениями NATS, связанная с недостатками процедуры аутентификации, позволяющая нарушителю обойти существующие механизмы безопасности и повысить свои привилегии

Опубликовано: 2026-07-13

CVSS 3.xВЫСОКАЯ 8.8

CVSS:3.x/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:L

CVSS 2.0ВЫСОКАЯ 7.3

CVSS:2.0/AV:A/AC:L/Au:N/C:P/I:C/A:P

Ссылки

HIGH7.1

NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.1 and 2.12.9, an MQTT client could include protocol control characters in subscription filters that were later forwarded as NATS protocol data to route or leafnode connections, corrupting the forwarded protocol stream and allowing injection of unintended NATS protocol operations. This issue is fixed in versions 2.14.1 and 2.12.9.

Опубликовано: 2026-07-08Изменено: 2026-07-13

CVSS 3.xВЫСОКАЯ 7.1

CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

Ссылки

HIGH7.5

NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.12.8 and 2.11.17, an unauthenticated peer with network access to a leafnode listener with compression enabled could crash the server during the pre-authentication leafnode handshake by sending repeated leafnode INFO protocol messages before authentication and account setup completed. This issue is fixed in versions 2.12.8 and 2.11.17.

Опубликовано: 2026-07-08Изменено: 2026-07-13

CVSS 3.xВЫСОКАЯ 7.5

CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Ссылки

MEDIUM6.5

NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.0, 2.12.7, and 2.11.16, an authenticated user with subscription deny permissions could bypass a plain subject deny rule by using a queue subscription, because queue-specific deny evaluation could override the plain subject deny result when the queue name itself was not denied. This issue is fixed in versions 2.14.0, 2.12.7, and 2.11.16.

Опубликовано: 2026-07-08Изменено: 2026-07-13

CVSS 3.xСРЕДНЯЯ 6.5

CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Ссылки

MEDIUM6.5

NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.0, 2.12.7, and 2.11.16, an authenticated user could receive messages on denied subjects when a wildcard subscription overlapped with a configured wildcard deny rule but was not a subset of it, and queue subscriptions could also affect delivery to legitimate queue consumers. This issue is fixed in versions 2.14.0, 2.12.7, and 2.11.16.

Опубликовано: 2026-07-08Изменено: 2026-07-13

CVSS 3.xСРЕДНЯЯ 6.5

CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Ссылки

HIGH8.8

NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.0, 2.12.7, and 2.11.16, when no_auth_user was configured, a parser fast path intended for ordinary client connections could also apply to route or leafnode listeners, allowing an unauthenticated peer to bypass inter-server CONNECT authentication and operate with the privileges associated with that connection type. This issue is fixed in versions 2.14.0, 2.12.7, and 2.11.16.

Опубликовано: 2026-07-08Изменено: 2026-07-13

CVSS 3.xВЫСОКАЯ 8.8

CVSS:3.x/CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:L

Ссылки