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CVE-2026-34786

Опубликовано: 02 апр. 2026
Источник: debian
EPSS Низкий

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.

Пакеты

ПакетСтатусВерсия исправленияРелизТип
ruby-rackfixed3.2.6-1experimentalpackage
ruby-rackfixed3.2.6-2package

Примечания

  • https://github.com/rack/rack/security/advisories/GHSA-q4qf-9j86-f5mh

  • Fixed by: https://github.com/rack/rack/commit/d6af0639e25ec6f3cc12bf64baa4b991be0cbfa1 (v3.2.6)

  • Fixed by: https://github.com/rack/rack/commit/84937c38065d0a7630828fdd526201c5241a9619 (v3.1.21)

  • Fixed by: https://github.com/rack/rack/commit/4207d22e58a41d57a2c6e1ed2602170504b000c7 (v2.2.23)

EPSS

Процентиль: 9%
0.00195
Низкий

Связанные уязвимости

CVSS3: 5.3
ubuntu
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: 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
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