CVE Explorer
CVE-2026-45780
Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, EventSerializer could expose invited group names, sample invitees, and attendance statistics to users who could view the topic but were not entitled to view the private event invitee list. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.
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, < 2026.1.5"},{"status":"affected","version":">= 2026.4.0-latest, < 2026.4.2"},{"status":"affected","version":">= 2026.5.0-latest, < 2026.5.1"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:63d3e62b8132fb75ab14ec5fcbf9220876064292a6dbaea27a14422a08c6c7f4 · sha256:a193814dd6682082… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:63d3e62b8132fb75ab14ec5fcbf9220876064292a6dbaea27a14422a08c6c7f4 · sha256:a193814dd6682082… · /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:v2:63d3e62b8132fb75ab14ec5fcbf9220876064292a6dbaea27a14422a08c6c7f4 · sha256:a193814dd6682082… · /containers/cna/problemTypes/0/descriptions/0
Source references
9 source assertions{"name":"https://github.com/discourse/discourse/commit/37969503f20369eb1712b7b88daedcfb4f63f5f1","tags":["x_refsource_MISC"],"url":"https://github.com/discourse/discourse/commit/37969503f20369eb1712b7b88daedcfb4f63f5f1"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:63d3e62b8132fb75ab14ec5fcbf9220876064292a6dbaea27a14422a08c6c7f4 · sha256:a193814dd6682082… · /containers/cna/references/1
{"name":"https://github.com/discourse/discourse/commit/4d46638041b5f3d1e1f7f6f6f19c1df3bd65a586","tags":["x_refsource_MISC"],"url":"https://github.com/discourse/discourse/commit/4d46638041b5f3d1e1f7f6f6f19c1df3bd65a586"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:63d3e62b8132fb75ab14ec5fcbf9220876064292a6dbaea27a14422a08c6c7f4 · sha256:a193814dd6682082… · /containers/cna/references/2
{"name":"https://github.com/discourse/discourse/commit/6457ab71f36a2d1440fe96af0a2593897844b023","tags":["x_refsource_MISC"],"url":"https://github.com/discourse/discourse/commit/6457ab71f36a2d1440fe96af0a2593897844b023"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:63d3e62b8132fb75ab14ec5fcbf9220876064292a6dbaea27a14422a08c6c7f4 · sha256:a193814dd6682082… · /containers/cna/references/3
{"name":"https://github.com/discourse/discourse/commit/7deb4b6963442569357b41e61febe37594e5e730","tags":["x_refsource_MISC"],"url":"https://github.com/discourse/discourse/commit/7deb4b6963442569357b41e61febe37594e5e730"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:63d3e62b8132fb75ab14ec5fcbf9220876064292a6dbaea27a14422a08c6c7f4 · sha256:a193814dd6682082… · /containers/cna/references/4
{"name":"https://github.com/discourse/discourse/releases/tag/v2026.1.5","tags":["x_refsource_MISC"],"url":"https://github.com/discourse/discourse/releases/tag/v2026.1.5"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:63d3e62b8132fb75ab14ec5fcbf9220876064292a6dbaea27a14422a08c6c7f4 · sha256:a193814dd6682082… · /containers/cna/references/5
{"name":"https://github.com/discourse/discourse/releases/tag/v2026.4.2","tags":["x_refsource_MISC"],"url":"https://github.com/discourse/discourse/releases/tag/v2026.4.2"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:63d3e62b8132fb75ab14ec5fcbf9220876064292a6dbaea27a14422a08c6c7f4 · sha256:a193814dd6682082… · /containers/cna/references/6
{"name":"https://github.com/discourse/discourse/releases/tag/v2026.5.1","tags":["x_refsource_MISC"],"url":"https://github.com/discourse/discourse/releases/tag/v2026.5.1"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:63d3e62b8132fb75ab14ec5fcbf9220876064292a6dbaea27a14422a08c6c7f4 · sha256:a193814dd6682082… · /containers/cna/references/7
{"name":"https://github.com/discourse/discourse/releases/tag/v2026.6.0","tags":["x_refsource_MISC"],"url":"https://github.com/discourse/discourse/releases/tag/v2026.6.0"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:63d3e62b8132fb75ab14ec5fcbf9220876064292a6dbaea27a14422a08c6c7f4 · sha256:a193814dd6682082… · /containers/cna/references/8
{"name":"https://github.com/discourse/discourse/security/advisories/GHSA-22v7-6wgj-g9f7","tags":["x_refsource_CONFIRM"],"url":"https://github.com/discourse/discourse/security/advisories/GHSA-22v7-6wgj-g9f7"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:63d3e62b8132fb75ab14ec5fcbf9220876064292a6dbaea27a14422a08c6c7f4 · sha256:a193814dd6682082… · /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.