CVE Explorer
CVE-2026-44786
Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.4, 2026.3.0-latest to before 2026.3.1, and 2026.4.0-latest to before 2026.4.1, chat events for public category channels are published to MessageBus without permission scoping, so any MessageBus subscriber without chat enabled could receive chat message payloads in real time. This issue has been patched in versions 2026.1.4, 2026.3.1, 2026.4.1, and 2026.5.0-latest.1.
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, < 2026.1.4"},{"status":"affected","version":">= 2026.3.0-latest, < 2026.3.1"},{"status":"affected","version":">= 2026.4.0-latest, < 2026.4.1"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:2b5fbae80cb32f18866d9aef20dc6b2913033f0d9591e60ad4d5b4ce3caa87b3 · sha256:fa1671d11f2c6d8d… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:2b5fbae80cb32f18866d9aef20dc6b2913033f0d9591e60ad4d5b4ce3caa87b3 · sha256:fa1671d11f2c6d8d… · /containers/cna/metrics/0/cvssV3_1
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:v2:2b5fbae80cb32f18866d9aef20dc6b2913033f0d9591e60ad4d5b4ce3caa87b3 · sha256:fa1671d11f2c6d8d… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"name":"https://github.com/discourse/discourse/security/advisories/GHSA-j7wq-rf5c-8783","tags":["x_refsource_CONFIRM"],"url":"https://github.com/discourse/discourse/security/advisories/GHSA-j7wq-rf5c-8783"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:2b5fbae80cb32f18866d9aef20dc6b2913033f0d9591e60ad4d5b4ce3caa87b3 · sha256:fa1671d11f2c6d8d… · /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.