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CVE-2026-34786

Опубликовано: 02 апр. 2026
Источник: ubuntu
Приоритет: medium
EPSS Низкий
CVSS3: 5.3

Описание

Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Static#applicable_rules evaluates several header_rules types against the raw URL-encoded PATH_INFO, while the underlying file-serving path is decoded before the file is served. As a result, a request for a URL-encoded variant of a static path can serve the same file without the headers that header_rules were intended to apply. In deployments that rely on Rack::Static to attach security-relevant response headers to static content, this can allow an attacker to bypass those headers by requesting an encoded form of the path. This issue has been patched in versions 2.2.23, 3.1.21, and 3.2.6.

РелизСтатусПримечание
devel

needed

esm-apps-legacy/xenial

ignored

changes too intrusive
esm-apps/bionic

released

1.6.4-4ubuntu0.2+esm10
esm-apps/focal

released

2.0.7-2ubuntu0.1+esm10
esm-apps/jammy

released

2.1.4-5ubuntu1.2+esm3
esm-apps/xenial

ignored

end of ESM support, was ignored [changes too intrusive]
esm-infra-legacy/trusty

ignored

changes too intrusive
jammy

needed

noble

released

2.2.7-1ubuntu0.7
questing

released

3.1.16-0.1ubuntu0.3

Показывать по

EPSS

Процентиль: 9%
0.00195
Низкий

5.3 Medium

CVSS3

Связанные уязвимости

CVSS3: 6.5
redhat
4 месяца назад

Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Static#applicable_rules evaluates several header_rules types against the raw URL-encoded PATH_INFO, while the underlying file-serving path is decoded before the file is served. As a result, a request for a URL-encoded variant of a static path can serve the same file without the headers that header_rules were intended to apply. In deployments that rely on Rack::Static to attach security-relevant response headers to static content, this can allow an attacker to bypass those headers by requesting an encoded form of the path. This issue has been patched in versions 2.2.23, 3.1.21, and 3.2.6.

CVSS3: 5.3
nvd
4 месяца назад

Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Static#applicable_rules evaluates several header_rules types against the raw URL-encoded PATH_INFO, while the underlying file-serving path is decoded before the file is served. As a result, a request for a URL-encoded variant of a static path can serve the same file without the headers that header_rules were intended to apply. In deployments that rely on Rack::Static to attach security-relevant response headers to static content, this can allow an attacker to bypass those headers by requesting an encoded form of the path. This issue has been patched in versions 2.2.23, 3.1.21, and 3.2.6.

CVSS3: 5.3
debian
4 месяца назад

Rack is a modular Ruby web server interface. Prior to versions 2.2.23, ...

CVSS3: 5.3
github
4 месяца назад

Rack:: Static header_rules bypass via URL-encoded paths

CVSS3: 5.3
fstec
4 месяца назад

Уязвимость модульного интерфейса веб-сервера Rack языка программирования Ruby, позволяющая нарушителю обойти существующие механизмы безопасности

EPSS

Процентиль: 9%
0.00195
Низкий

5.3 Medium

CVSS3