CVE Tools
Track your stack

Discourse

271 CVEs across 34 months on the top 200 list since Jul 2019. Peak rank #24 in Mar 2026. None of them is in CISA KEV.

Discourse CVEs per month since Jul 2019

Sep 2021 to Aug 2026 in the lens. Point at a month to read it, or drag the frame to move through the record.Tallest in the lens: 48, Mar 2026
Sep 2021: 3 CVEs · 0 critical · 0 now in CISA KEV · rank #148 · mostly DiscourseOct 2021: 2 CVEs · 1 critical · 0 now in CISA KEV · rank #192 · mostly Discourse, Discourse Reactions, Discourse-reactionsNov 2021: 2 CVEs · 0 critical · 0 now in CISA KEV · rank #189 · mostly Rails_multisite, Discourse, Rails MultisiteDec 2021: 5 CVEs · 0 critical · 0 now in CISA KEV · rank #102 · mostly Discourse, Discourse Footnote, Discourse-footnoteJan 2022: 5 CVEs · 0 critical · 0 now in CISA KEV · rank #104 · mostly DiscourseFeb 2022: not on the top 200 that monthMar 2022: not on the top 200 that monthApr 2022: 4 CVEs · 0 critical · 0 now in CISA KEV · rank #136 · mostly Discourse, Assign, Discourse-assignMay 2022: not on the top 200 that monthJun 2022: 5 CVEs · 0 critical · 0 now in CISA KEV · rank #129 · mostly Discourse, Discourse-calendar, Discourse-chatJul 2022: not on the top 200 that monthAug 2022: not on the top 200 that monthSep 2022: 6 CVEs · 1 critical · 0 now in CISA KEV · rank #85 · mostly Discourse, Discourse-chatOct 2022: 3 CVEs · 1 critical · 0 now in CISA KEV · rank #156 · mostly Patreon, Discotoc, Discourse-chatNov 2022: 10 CVEs · 0 critical · 0 now in CISA KEV · rank #81 · mostly Discourse, Discourse Bbcode, CalendarDec 2022: not on the top 200 that monthJan 2023: 16 CVEs · 0 critical · 0 now in CISA KEV · rank #50 · mostly Discourse, Discourse-mermaid-theme-component, MermaidFeb 2023: not on the top 200 that monthMar 2023: not on the top 200 that monthApr 2023: 5 CVEs · 0 critical · 0 now in CISA KEV · rank #127 · mostly Discourse, Discourse-reactions, ReactionsMay 2023: not on the top 200 that monthJun 2023: 4 CVEs · 0 critical · 0 now in CISA KEV · rank #158 · mostly DiscourseJul 2023: 9 CVEs · 0 critical · 0 now in CISA KEV · rank #68 · mostly DiscourseAug 2023: not on the top 200 that monthSep 2023: 5 CVEs · 0 critical · 0 now in CISA KEV · rank #117 · mostly Discourse, Discourse-encryptOct 2023: 8 CVEs · 0 critical · 0 now in CISA KEV · rank #93 · mostly Discourse, Discourse Calendar, Discourse-calendarNov 2023: 6 CVEs · 0 critical · 0 now in CISA KEV · rank #118 · mostly DiscourseDec 2023: not on the top 200 that monthJan 2024: 5 CVEs · 0 critical · 0 now in CISA KEV · rank #141 · mostly Discourse, Discourse Reactions, Discourse-reactionsFeb 2024: 5 CVEs · 1 critical · 0 now in CISA KEV · rank #137 · mostly Calendar, Discourse-calendar, Discourse-group-membership-ip-blockMar 2024: 5 CVEs · 0 critical · 0 now in CISA KEV · rank #151 · mostly DiscourseApr 2024: not on the top 200 that monthMay 2024: not on the top 200 that monthJun 2024: not on the top 200 that monthJul 2024: 9 CVEs · 0 critical · 0 now in CISA KEV · rank #81 · mostly DiscourseAug 2024: not on the top 200 that monthSep 2024: not on the top 200 that monthOct 2024: 5 CVEs · 0 critical · 0 now in CISA KEV · rank #136 · mostly DiscourseNov 2024: not on the top 200 that monthDec 2024: 4 CVEs · 0 critical · 0 now in CISA KEV · rank #164 · mostly DiscourseJan 2025: not on the top 200 that monthFeb 2025: 9 CVEs · 0 critical · 0 now in CISA KEV · rank #79 · mostly DiscourseMar 2025: not on the top 200 that monthApr 2025: not on the top 200 that monthMay 2025: not on the top 200 that monthJun 2025: 5 CVEs · 1 critical · 0 now in CISA KEV · rank #164 · mostly DiscourseJul 2025: not on the top 200 that monthAug 2025: not on the top 200 that monthSep 2025: not on the top 200 that monthOct 2025: not on the top 200 that monthNov 2025: not on the top 200 that monthDec 2025: not on the top 200 that monthJan 2026: 14 CVEs · 0 critical · 0 now in CISA KEV · rank #67 · mostly DiscourseFeb 2026: 17 CVEs · 0 critical · 0 now in CISA KEV · rank #65 · mostly DiscourseMar 2026: 48 CVEs · 0 critical · 0 now in CISA KEV · rank #24 · mostly DiscourseApr 2026: not on the top 200 that monthMay 2026: not on the top 200 that monthJun 2026: 11 CVEs · 0 critical · 0 now in CISA KEV · rank #113 · mostly DiscourseJul 2026: 11 CVEs · 0 critical · 0 now in CISA KEV · rank #123 · mostly DiscourseAug 2026: 17 CVEs · 1 critical · 0 now in CISA KEV · rank #89 · mostly Discourse

In the lens

The products that kept showing up in Discourse's monthly top three from Sep 2021 to Aug 2026. Move the lens and the list follows.

  1. Discourse23929 months
  2. Discourse-calendar43 months
  3. Calendar32 months
  4. Discourse-chat33 months
  5. Discourse-reactions33 months
  6. Discourse Reactions22 months
  7. Assign11 month
  8. Discotoc11 month
  9. Discourse Bbcode11 month
  10. Discourse Calendar11 month

Year by year

Each year's months on the top 200 list. Pick a year to read it in the lens.

The record

Peak rank
#24 in Mar 2026
Busiest month
Mar 2026, 48 CVEs
Months with a KEV entry
0 of 34 on the list
On the top 200 list
34 of 86 monthly snapshots

We use analytics cookies to see which pages and articles actually help people. Decline and none of them run — the site works the same. What we store