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Mattermost

641 CVEs across 45 months on the top 200 list since Jun 2020. Peak rank #1 in Jun 2020. None of them is in CISA KEV.

Mattermost CVEs per month since Jun 2020

Dec 2021 to Nov 2026 in the lens. Point at a month to read it, or drag the frame to move through the record.Tallest in the lens: 36, May 2026
Dec 2021: 3 CVEs · 0 critical · 0 now in CISA KEV · rank #170 · mostly Mattermost, Mattermost ServerJan 2022: 4 CVEs · 0 critical · 0 now in CISA KEV · rank #133 · mostly Mattermost Boards, MattermostFeb 2022: below the top 200 that month, 2 or fewer CVEsMar 2022: 4 CVEs · 0 critical · 0 now in CISA KEV · rank #148 · mostly Mattermost, Mattermost ServerApr 2022: 5 CVEs · 0 critical · 0 now in CISA KEV · rank #127 · mostly Mattermost Server, Mattermost, Mattermost PlaybooksMay 2022: below the top 200 that month, 3 or fewer CVEsJun 2022: below the top 200 that month, 3 or fewer CVEsJul 2022: 4 CVEs · 0 critical · 0 now in CISA KEV · rank #144 · mostly Mattermost, Mattermost ServerAug 2022: below the top 200 that month, 3 or fewer CVEsSep 2022: below the top 200 that month, 3 or fewer CVEsOct 2022: below the top 200 that month, 2 or fewer CVEsNov 2022: 3 CVEs · 0 critical · 0 now in CISA KEV · rank #190 · mostly Mattermost, Playbooks PluginDec 2022: below the top 200 that month, 3 or fewer CVEsJan 2023: below the top 200 that month, 3 or fewer CVEsFeb 2023: 4 CVEs · 0 critical · 0 now in CISA KEV · rank #160 · mostly Mattermost, Mattermost ServerMar 2023: no snapshot, the run for this month failedApr 2023: below the top 200 that month, 3 or fewer CVEsMay 2023: 4 CVEs · 0 critical · 0 now in CISA KEV · rank #170 · mostly Mattermost, Mattermost Desktop, Mattermost ServerJun 2023: 11 CVEs · 0 critical · 0 now in CISA KEV · rank #60 · mostly Mattermost, Mattermost App Framework, Mattermost GitHub PluginJul 2023: 13 CVEs · 0 critical · 0 now in CISA KEV · rank #56 · mostly Mattermost Server, Mattermost, Mattermost PluginsAug 2023: 5 CVEs · 0 critical · 0 now in CISA KEV · rank #163 · mostly Mattermost, Mattermost ServerSep 2023: 5 CVEs · 0 critical · 0 now in CISA KEV · rank #127 · mostly MattermostOct 2023: 6 CVEs · 0 critical · 0 now in CISA KEV · rank #121 · mostly Mattermost, Mattermost Server, Mattermost DesktopNov 2023: 15 CVEs · 0 critical · 0 now in CISA KEV · rank #40 · mostly Mattermost, Mattermost DesktopDec 2023: 12 CVEs · 0 critical · 0 now in CISA KEV · rank #62 · mostly Mattermost, Mattermost ServerJan 2024: below the top 200 that month, 4 or fewer CVEsFeb 2024: 13 CVEs · 0 critical · 0 now in CISA KEV · rank #55 · mostly Mattermost Server, MattermostMar 2024: 5 CVEs · 0 critical · 0 now in CISA KEV · rank #161 · mostly Mattermost, Mattermost Server, Mattermost MobileApr 2024: 11 CVEs · 0 critical · 0 now in CISA KEV · rank #80 · mostly Mattermost, Mattermost Server, Mattermost MobileMay 2024: 9 CVEs · 0 critical · 0 now in CISA KEV · rank #134 · mostly Mattermost, Mattermost ServerJun 2024: below the top 200 that month, 4 or fewer CVEsJul 2024: 8 CVEs · 0 critical · 0 now in CISA KEV · rank #92 · mostly Mattermost, Mattermost MobileAug 2024: 21 CVEs · 0 critical · 0 now in CISA KEV · rank #40 · mostly Mattermost, Mattermost Server, Mattermost Channel ExportSep 2024: 9 CVEs · 0 critical · 0 now in CISA KEV · rank #71 · mostly Mattermost, Mattermost Server, Mattermost DesktopOct 2024: 5 CVEs · 0 critical · 0 now in CISA KEV · rank #147 · mostly Mattermost, Mattermost ServerNov 2024: below the top 200 that month, 4 or fewer CVEsDec 2024: 5 CVEs · 0 critical · 0 now in CISA KEV · rank #128 · mostly Mattermost, Mattermost Server, Mattermost MobileJan 2025: 12 CVEs · 0 critical · 0 now in CISA KEV · rank #62 · mostly Mattermost, Mattermost Server, Mattermost MobileFeb 2025: 6 CVEs · 3 critical · 0 now in CISA KEV · rank #120 · mostly Mattermost, Mattermost ServerMar 2025: 9 CVEs · 0 critical · 0 now in CISA KEV · rank #111 · mostly Mattermost, Mattermost Server, Mattermost DesktopApr 2025: 14 CVEs · 0 critical · 0 now in CISA KEV · rank #62 · mostly Mattermost, Mattermost Server, Ms TeamsMay 2025: 9 CVEs · 0 critical · 0 now in CISA KEV · rank #96 · mostly Mattermost, Mattermost ServerJun 2025: 7 CVEs · 1 critical · 0 now in CISA KEV · rank #117 · mostly Mattermost Server, MattermostJul 2025: below the top 200 that month, 5 or fewer CVEsAug 2025: 22 CVEs · 0 critical · 0 now in CISA KEV · rank #47 · mostly Confluence, Mattermost Confluence Plugin, MattermostSep 2025: 6 CVEs · 0 critical · 0 now in CISA KEV · rank #125 · mostly Mattermost, Mattermost ServerOct 2025: 8 CVEs · 0 critical · 0 now in CISA KEV · rank #125 · mostly Mattermost, Mattermost Server, Mattermost DesktopNov 2025: 11 CVEs · 2 critical · 0 now in CISA KEV · rank #73 · mostly Mattermost, Mattermost Server, Mattermost MobileDec 2025: 12 CVEs · 0 critical · 0 now in CISA KEV · rank #75 · mostly Mattermost, Mattermost Server, Mattermost DesktopJan 2026: below the top 200 that month, 5 or fewer CVEsFeb 2026: 10 CVEs · 0 critical · 0 now in CISA KEV · rank #91 · mostly Mattermost, Mattermost Server, ZoomMar 2026: 34 CVEs · 0 critical · 0 now in CISA KEV · rank #37 · mostly Mattermost, Mattermost Server, Ms TeamsApr 2026: 8 CVEs · 0 critical · 0 now in CISA KEV · rank #146 · mostly Mattermost, Mattermost Server, FocalboardMay 2026: 36 CVEs · 0 critical · 0 now in CISA KEV · rank #33 · mostly Mattermost, Mattermost Server, Mattermost DesktopJun 2026: 20 CVEs · 0 critical · 0 now in CISA KEV · rank #47 · mostly Mattermost, Mattermost Server, Mattermost DesktopJul 2026: 15 CVEs · 0 critical · 0 now in CISA KEV · rank #89 · mostly Mattermost, Mattermost Server, Mattermost DesktopAug 2026: 14 CVEs · 0 critical · 0 now in CISA KEV · rank #112 · mostly Mattermost, Mattermost Server, Mattermost DesktopSep 2026: 22 CVEs · 0 critical · 0 now in CISA KEV · rank #67 · mostly MattermostOct 2026: 23 CVEs · 0 critical · 0 now in CISA KEV · rank #79 · mostly Mattermost, Mattermost ServerNov 2026: none that month (the list had room for every one)

In the lens

The products that kept showing up in Mattermost's monthly top three from Dec 2021 to Nov 2026. Move the lens and the list follows.

  1. Mattermost45644 months
  2. Mattermost Server29936 months
  3. Mattermost Desktop2011 months
  4. Confluence131 month
  5. Mattermost Confluence Plugin131 month
  6. Mattermost Mobile116 months
  7. Focalboard21 month
  8. Mattermost App Framework21 month
  9. Mattermost Boards21 month
  10. Ms Teams22 months

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
#1 in Jun 2020
Busiest month
Jun 2020, 159 CVEs
Months with a KEV entry
0 of 45 on the list
On the top 200 list
45 of 75 monthly snapshots

Each monthly snapshot keeps the top 200 vendors by CVEs. A month below the cut shows the most it could have had: the smallest count that made the list. 3 months have no snapshot because the run failed.

MethodologyAll months on recordThe Mattermost hub