EUVD-2026-30815

Discourse is an open-source discussion platform. In versions prior to 2026.1.4, 2026.3.1, 2026.4.1 and 2026.5.0-latest.1, outdated cached AI summaries can leak removed content to anonymous and unprivileged users who cannot regenerate summaries. This issue has been fixed in versions 2026.1.4,...

CVE-2026-32244

Discourse is an open-source discussion platform. In versions prior to 2026.1.4, 2026.3.1, 2026.4.1 and 2026.5.0-latest.1, outdated cached AI summaries can leak removed content to anonymous and unprivileged users who cannot regenerate summaries. This issue has been fixed in versions 2026.1.4,...

CVE-2026-32244

Discourse: Cached outdated AI summaries can leak removed content to anonymous/unprivileged users who cannot regenerate summaries. Affected in versions prior to 2026.1.4, 2026.3.1, 2026.4.1 and 2026.5.0-latest. Fixed in those versions. Remediation: upgrade to 2026.1.4, 2026.3.1, 2026.4.1, or 2026....

CVE-2026-32244 Discourse: Cached outdated summaries can leak removed content

Discourse is an open-source discussion platform. In versions prior to 2026.1.4, 2026.3.1, 2026.4.1 and 2026.5.0-latest.1, outdated cached AI summaries can leak removed content to anonymous and unprivileged users who cannot regenerate summaries. This issue has been fixed in versions 2026.1.4,...

CVE-2026-32244 Discourse: Cached outdated summaries can leak removed content

Discourse is an open-source discussion platform. In versions prior to 2026.1.4, 2026.3.1, 2026.4.1 and 2026.5.0-latest.1, outdated cached AI summaries can leak removed content to anonymous and unprivileged users who cannot regenerate summaries. This issue has been fixed in versions 2026.1.4,...

Discourse 安全漏洞

Discourse is an open-source community discussion platform developed by Discourse. This platform includes features such as communities, email, and chat rooms. Versions of Discourse before 2026.1.4, 2026.3.1, 2026.4.1, and 2026.5.0-latest.1 contain security vulnerabilities. These vulnerabilities st...

Discourse 信息泄露漏洞

Discourse is an open-source community discussion platform developed by Discourse. This platform includes features such as communities, email communication, and chat rooms. Versions of Discourse prior to 2026.1.4, 2026.3.1, 2026.4.1, and 2026.5.0-latest.1 contain information leakage vulnerabilitie...

CVE-2026-33514: Missing Authorization

Discourse is an open-source discussion platform. In versions prior to 2026.1.4, 2026.3.1, 2026.4.1 and 2026.5.0-latest.1, an authenticated user on a Discourse instance with the form templates feature enabled can read the name and structured content of form templates that are intended exclusively...

PT-2026-41764

Name of the Vulnerable Software and Affected Versions Discourse versions prior to 2026.1.4 Discourse versions prior to 2026.3.1 Discourse versions prior to 2026.4.1 Discourse versions prior to 2026.5.0-latest.1 Description An authenticated user on an instance with the form templates feature enabl...

CVE-2026-32244: Use of Cache Containing Sensitive Information

Discourse is an open-source discussion platform. In versions prior to 2026.1.4, 2026.3.1, 2026.4.1 and 2026.5.0-latest.1, outdated cached AI summaries can leak removed content to anonymous and unprivileged users who cannot regenerate summaries. This issue has been fixed in versions 2026.1.4,...

PT-2026-41758

Name of the Vulnerable Software and Affected Versions Discourse versions prior to 2026.1.4 Discourse versions prior to 2026.3.1 Discourse versions prior to 2026.4.1 Discourse versions prior to 2026.5.0-latest.1 Description Outdated cached AI summaries can leak removed content to anonymous and...

PT-2026-41996

Name of the Vulnerable Software and Affected Versions Discourse versions prior to 2026.1.4 Discourse versions prior to 2026.3.1 Discourse versions prior to 2026.4.1 Discourse versions prior to 2026.5.0-latest.1 Description A flaw in the discourse-subscriptions plugin allows users to gain access t...

Discourse 安全漏洞

Discourse is an open-source community discussion platform developed by Discourse. This platform includes features such as communities, email communication, and chat rooms. Versions of Discourse prior to 2026.1.4, 2026.3.1, 2026.4.1, and 2026.5.0-latest.1 contain security vulnerabilities. These...

CVE-2026-34154: Missing Authorization

Discourse is an open-source discussion platform. In versions prior to 2026.1.4, 2026.3.1, 2026.4.1 and 2026.5.0-latest.1, a vulnerability in the discourse-subscriptions plugin allows users to gain access to subscription-gated groups without completing payment. This issue has been fixed in version...

HackerSignal: A Large-Scale Multi-Source Dataset Linking Hacker Community Discourse to the CVE Vulnerability Lifecycle

We introduce HackerSignal, a benchmark for temporal out-of-distribution cyber threat intelligence CTI and cross-source CVE linkage. HackerSignal aggregates 7.45 million exact-deduplicated documents from 64 public forum/source identifiers spanning eight source layers and a 36-year window 1990-2026...

Discourse: Hidden/restricted tags can be mutated through synonym ID paths without per-tag authorization

A vulnerability was discovered in Discourse where a non-admin user with tag-editing permission could modify hidden or restricted tags by supplying their numeric IDs to the synonym creation and tag settings endpoints. Although the user could not view the hidden tags, the controller only authorized...

Discourse code issue vulnerability (CNVD-2026-17261)

Discourse is Discourse open source set of open source community discussion platform. The platform includes features such as community , e-mail and chat rooms . Discourse suffers from a code issue vulnerability that can be exploited by an attacker to cause the server to initiate outbound connectio...

Discourse Information Disclosure Vulnerability (CNVD-2026-17250)

Discourse is Discourse open source set of open source community discussion platform. The platform includes features such as community , e-mail and chat rooms . Discourse has an information leakage vulnerability , the vulnerability stems from the discourse-subscriptions plugin leaks stripe API key...

Discourse cross-site scripting vulnerability (CNVD-2026-17253)

Discourse is Discourse open source set of open source community discussion platform. The platform includes features such as community , e-mail and chat rooms . Discourse suffers from a cross-site scripting vulnerability that can be exploited by an attacker to inject arbitrary HTML and JavaScript...

Discourse authorization issue vulnerability (CNVD-2026-17254)

Discourse is Discourse open source set of open source community discussion platform. The platform includes features such as community , e-mail and chat rooms . Discourse suffers from an authorization issue vulnerability that can be exploited by an attacker to cause a user to purchase a lower tier...