Discourse: Shared-draft titles and excerpts leak through group post serialization
Discourse is an open-source discussion platform. Prior o 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0, users who were allowed to view a group’s activity, but were not permitted to see shared drafts, could still receive shared-draft entries through the group posts and group mentions endpoints. This could disclose shared-draft topic titles and post excerpt/content, resulting in an information disclosure of unpublished draft material. This issue is fixed in versions 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0.
BIT-discourse-2026-55704
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:BIT-discourse-2026-55704
discourse
Source reference: /affected/0/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 2026.1.6
Source reference:
/affected/0/ranges2026.5.2Source reference:
/affected/0/ranges2026.6.1Source reference:
/affected/0/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "SEMVER",
"events": [
{
"introduced": "0"
},
{
"fixed": "2026.1.6"
},
{
"introduced": "2026.5.0"
},
{
"fixed": "2026.5.2"
},
{
"introduced": "2026.6.0"
},
{
"fixed": "2026.6.1"
}
]
}
],
"package": {
"name": "discourse",
"purl": "pkg:bitnami/discourse",
"ecosystem": "Bitnami"
},
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
}
],
"database_specific": {
"source": "https://github.com/bitnami/vulndb/tree/main/data/discourse/BIT-discourse-2026-55704.json"
}
}
]- Related CVEs
- CVE-2026-55704
Source reference:
/aliases
Publisher severity
medium
Source reference: /database_specific/severity
- Event
- #84237 · Revision 1
- Added to Heist Feed
- Publisher date