cbcvebase.
CVE-2026-27934
published 2026-03-19

CVE-2026-27934: Discourse is an open-source discussion platform. Versions prior to 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 have a lack of visibility checks with a user…

PriorityP357high7.5CVSS 3.1
AVNACLPRNUINSUCHINAN
EXPLOIT
EPSS
1.43%
72.8th percentile
Discourse is an open-source discussion platform. Versions prior to 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 have a lack of visibility checks with a user action API endpoint that results in disclosure of the title and post excerpt to unauthorized users, leading to information disclosure. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. No known workarounds are available.

Affected

6 ranges
VendorProductVersion rangeFixed in
discoursediscourse——
discoursediscourse——
discoursediscourse——
discoursediscourse——
discoursediscourse>= 2026.1.0 < 2026.1.22026.1.2
discoursediscourse>= 2026.2.0 < 2026.2.12026.2.1

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
nvdv4.08.7HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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