Injection/XSS in Redcarpet

中 5.4CVE-2020-26298 · GHSA-q3wr-qw3g-3p4h · 11/01/2021 公開 · 17/06/2026 更新

要点

CVE-2020-26298 は redcarpet, redcarpet (redcarpet project) に影響する深刻度「中」 (CVSS 5.4) の脆弱性です。
今後30日間に悪用される確率（EPSS）：1.6%（全脆弱性の 75.7% より高い）。
対処：3.5.1 以降に更新してください。

パッケージ	影響を受けるバージョン	修正済みバージョン
redcarpet RubyGems	`< 3.5.1`	`3.5.1`
redcarpet redcarpet_project	`< 3.5.1`	`3.5.1`

概要

Redcarpet is a Ruby library for Markdown processing. In Redcarpet before version 3.5.1, there is an injection vulnerability which can enable a cross-site scripting attack. In affected versions no HTML escaping was being performed when processing quotes. This applies even when the :escape_html option was being used. This is fixed in version 3.5.1 by the referenced commit.

NVD の説明

Redcarpet is a Ruby library for Markdown processing. In Redcarpet before version 3.5.1, there is an injection vulnerability which can enable a cross-site scripting attack. In affected versions no HTML escaping was being performed when processing quotes. This applies even when the `:escape_html` option was being used. This is fixed in version 3.5.1 by the referenced commit.

参考情報

redcarpet のその他の脆弱性

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パッケージ

影響を受けるバージョン

修正済みバージョン

redcarpet

RubyGems

< 3.5.1

3.5.1

redcarpet

redcarpet_project

< 3.5.1

3.5.1

概要

NVD の説明

Redcarpet is a Ruby library for Markdown processing. In Redcarpet before version 3.5.1, there is an injection vulnerability which can enable a cross-site scripting attack. In affected versions no HTML escaping was being performed when processing quotes. This applies even when the `:escape_html` option was being used. This is fixed in version 3.5.1 by the referenced commit.