EUVD-2026-78169

Takahe through 0.11.0 fails to restrict URL schemes in link hrefs within federated post content and profile summaries, allowing remote actors to inject javascript: links. Attackers can deliver federated content with malicious javascript: hrefs that execute in the instance origin when clicked,...

CVE-2026-91146

Takahe versions through 0.11.0 fail to restrict URL schemes in link hrefs within federated post content and profile summaries. This allows remote attackers to inject javascript: links that execute in the instance origin when a user clicks them, enabling session hijacking or impersonation of viewe...

CVE-2026-54743

Lemmy is a link aggregator and forum for the fediverse. Prior to lemmy-ui 0.19.19-beta.1, LemmyNet/lemmy-ui renders Markdown in src/shared/markdown.ts for post bodies, comment bodies, private messages, and community and site sidebars through mdToHtml, which returns a raw html object that Inferno...