CVE-2026-27934
- Source
- https://cve.org/CVERecord?id=CVE-2026-27934
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-27934.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-27934
- Aliases
-
- BIT-discourse-2026-27934
- GHSA-824f-66wh-xx3g
- Published
- 2026-03-19T21:17:43.369Z
- Modified
- 2026-07-15T02:18:24.420396302Z
- Severity
-
- 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- Discourse leaks private topic title and post excerpt via user action API endpoint
- Details
-
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.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-201" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27934.json" }- References
Affected packages
Git / github.com/discourse/discourse
Affected ranges
- Type
- GIT
- Repo
- https://github.com/discourse/discourse
- Events
-
IntroducedFixedIntroducedFixedIntroducedLast affected
- Database specific
{ "source": [ "CPE_RANGE", "CPE_STRING" ], "extracted_events": [ { "introduced": "2026.1.0" }, { "fixed": "2026.1.2" }, { "introduced": "2026.2.0" }, { "fixed": "2026.2.1" }, { "introduced": "2026.3.0" }, { "last_affected": "2026.3.0" } ], "cpe": [ "cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*", "cpe:2.3:a:discourse:discourse:2026.3.0:*:*:*:latest:*:*:*" ] }