CVE-2026-26979
Discourse: TL4 users are able to change status of restricted topics
Vexday Risk Score
3Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 0EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
26 Feb 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, TL4 users are able to close, archive and pin topics in private categories they don't have access to. Versions 2025.12.2, 2026.1.1, and 2026.2.0 patch the issue. No known workarounds are available.
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N
Affected products
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