CVE Explorer
CVE-2026-27481
Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.3, 2026.2.0-latest to before 2026.2.2, and 2026.3.0-latest to before 2026.3.0, an authorization bypass vulnerability allows unauthenticated or unauthorized users to view hidden (staff-only) tags and its associated data. All Discourse instances with tagging enabled and staff-only tag groups configured are impacted. This issue has been patched in versions 2026.1.3, 2026.2.2, and 2026.3.0.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"discourse","vendor":"discourse","versions":[{"status":"affected","version":">= 2026.1.0-latest, < 2026.1.3"},{"status":"affected","version":">= 2026.2.0-latest, < 2026.2.2"},{"status":"affected","version":">= 2026.3.0-latest, < 2026.3.0"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:ce05778e680bdbdc478e0578955d7ef5d982f587fd021bbca7a9405453914796 · sha256:f709df0cf0959cc7… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":6.3,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:ce05778e680bdbdc478e0578955d7ef5d982f587fd021bbca7a9405453914796 · sha256:f709df0cf0959cc7… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-200","description":"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:ce05778e680bdbdc478e0578955d7ef5d982f587fd021bbca7a9405453914796 · sha256:f709df0cf0959cc7… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"name":"https://github.com/discourse/discourse/security/advisories/GHSA-6c9x-3vrp-682x","tags":["x_refsource_CONFIRM"],"url":"https://github.com/discourse/discourse/security/advisories/GHSA-6c9x-3vrp-682x"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:ce05778e680bdbdc478e0578955d7ef5d982f587fd021bbca7a9405453914796 · sha256:f709df0cf0959cc7… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.