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CVE-2026-39324

Опубликовано: 07 апр. 2026
Источник: ubuntu
Приоритет: medium
EPSS Низкий
CVSS3: 9.8

Описание

Rack::Session is a session management implementation for Rack. From 2.0.0 to before 2.1.2, Rack::Session::Cookie incorrectly handles decryption failures when configured with secrets:. If cookie decryption fails, the implementation falls back to a default decoder instead of rejecting the cookie. This allows an unauthenticated attacker to supply a crafted session cookie that is accepted as valid session data without knowledge of any configured secret. Because this mechanism is used to load session state, an attacker can manipulate session contents and potentially gain unauthorized access. This vulnerability is fixed in 2.1.2.

РелизСтатусПримечание
devel

not-affected

code not present
esm-apps-legacy/xenial

not-affected

code not present
esm-apps/bionic

not-affected

code not present
esm-apps/focal

not-affected

code not present
esm-apps/jammy

not-affected

code not present
esm-apps/xenial

not-affected

code not present
esm-infra-legacy/trusty

not-affected

code not present
jammy

not-affected

code not present
noble

not-affected

code not present
questing

not-affected

code not present

Показывать по

РелизСтатусПримечание
devel

needed

jammy

DNE

noble

DNE

questing

released

2.1.1-0.1ubuntu0.1
resolute

released

2.1.1-0.1ubuntu0.26.04.1
upstream

released

2.1.2

Показывать по

EPSS

Процентиль: 19%
0.0027
Низкий

9.8 Critical

CVSS3

Связанные уязвимости

CVSS3: 9.8
nvd
4 месяца назад

Rack::Session is a session management implementation for Rack. From 2.0.0 to before 2.1.2, Rack::Session::Cookie incorrectly handles decryption failures when configured with secrets:. If cookie decryption fails, the implementation falls back to a default decoder instead of rejecting the cookie. This allows an unauthenticated attacker to supply a crafted session cookie that is accepted as valid session data without knowledge of any configured secret. Because this mechanism is used to load session state, an attacker can manipulate session contents and potentially gain unauthorized access. This vulnerability is fixed in 2.1.2.

CVSS3: 9.8
debian
4 месяца назад

Rack::Session is a session management implementation for Rack. From 2. ...

github
4 месяца назад

Rack::Session::Cookie secrets: decrypt failure fallback enables secretless session forgery and Marshal deserialization

CVSS3: 9.8
fstec
4 месяца назад

Уязвимость библиотеки Rust для управления сессиями в Rack-приложениях Rack::Session, позволяющая нарушителю вызвать отказ в обслуживании

EPSS

Процентиль: 19%
0.0027
Низкий

9.8 Critical

CVSS3