{"metadata": {"vulnerability": "CVE-2026-9816", "count": 22, "kinds": {"milestone": 5, "sighting": 6, "kev": 0, "other": 11}}, "data": [{"timestamp": "2025-08-04T16:30:00Z", "date_only": false, "value": "2025-08-04T16:30:00Z", "kind": "other", "label": "Document generated", "source": "csaf_ncscnl \u00b7 NCSC-2026-0305", "record": "NCSC-2026-0305", "field": "document.tracking.generator.date"}, {"timestamp": "2026-05-28T09:54:00.723Z", "date_only": false, "value": "2026-05-28T09:54:00.723Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-9816", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-08-17T22:05:24.910Z", "date_only": false, "value": "2026-08-17T22:05:24.910Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-9816", "field": "cveMetadata.datePublished"}, {"timestamp": "2026-08-17T22:05:24.910Z", "date_only": false, "value": "2026-08-17T22:05:24.910Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / Mattermost", "record": "CVE-2026-9816", "field": "containers.cna.providerMetadata.dateUpdated"}, {"timestamp": "2026-08-17T22:17:27Z", "date_only": false, "value": "2026-08-17T22:17:27Z", "kind": "other", "label": "Nvd published at", "source": "github \u00b7 GHSA-H2C9-X337-F543", "record": "GHSA-H2C9-X337-F543", "field": "database_specific.nvd_published_at"}, {"timestamp": "2026-08-17T22:17:27.217Z", "date_only": false, "value": "2026-08-17T22:17:27.217", "kind": "milestone", "label": "Published", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-9816", "record": "FKIE_CVE-2026-9816", "field": "published"}, {"timestamp": "2026-08-17T23:00:47.147Z", "date_only": false, "value": "2026-08-17T23:00:47.147722Z", "kind": "sighting", "label": "Seen", "source": "https://bsky.app/profile/thehackerwire.bsky.social/post/3mtcslyth7u22", "record": "CVE-2026-9816", "field": "creation_timestamp", "uuid": "e94e422b-6903-4dd8-87a2-348286d19fd9", "content": "\ud83d\udfe0 CVE-2026-9816 - High (8.3)\n\nMattermost versions 11.7.x <= 11.7.6, 10.11.x <= 10.11.21, 11.8.x <= 11.8.3 fail to vali...\n\nhttps://www.thehackerwire.com/vulnerability/CVE-2026-9816/\n\n#infosec #cybersecurity #CVE #vulnerability #security #patchstack", "url": "https://bsky.app/profile/thehackerwire.bsky.social/post/3mtcslyth7u22"}, {"timestamp": "2026-08-17T23:55:49.925Z", "date_only": false, "value": "2026-08-17T23:55:49.925582Z", "kind": "sighting", "label": "Seen", "source": "https://bsky.app/profile/cve.skyfleet.blue/post/esnynuv6upzdy", "record": "CVE-2026-9816", "field": "creation_timestamp", "uuid": "85360efd-a4f9-4a41-a2e4-cc171407f038", "content": "CVE-2026-9816 - Insufficient server-side validation of board member role fields permits privilege escalation\nCVE ID : CVE-2026-9816\n \n Published : Aug. 17, 2026, 10:17 p.m. | 18\u00a0minutes ago\n \n Description : Mattermost versions 11.7.x <= 11.7.6, 10.11.x <= 10.11.21, 11.8....", "url": "https://bsky.app/profile/cve.skyfleet.blue/post/esnynuv6upzdy"}, {"timestamp": "2026-08-18T00:30:36Z", "date_only": false, "value": "2026-08-18T00:30:36Z", "kind": "milestone", "label": "Published", "source": "github \u00b7 GHSA-H2C9-X337-F543", "record": "GHSA-H2C9-X337-F543", "field": "published"}, {"timestamp": "2026-08-18T00:30:36Z", "date_only": false, "value": "2026-08-18T00:30:36Z", "kind": "other", "label": "Updated", "source": "github \u00b7 GHSA-H2C9-X337-F543", "record": "GHSA-H2C9-X337-F543", "field": "modified"}, {"timestamp": "2026-08-18T15:23:50.527Z", "date_only": false, "value": "2026-08-18T15:23:50.527601Z", "kind": "other", "label": "Recorded", "source": "cvelistv5 / CISA-ADP", "record": "CVE-2026-9816", "field": "containers.adp.0.metrics.0.other.content.timestamp"}, {"timestamp": "2026-08-18T15:23:50.527Z", "date_only": false, "value": "2026-08-18T15:23:50.527601Z", "kind": "other", "label": "Recorded", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-9816", "record": "FKIE_CVE-2026-9816", "field": "metrics.ssvcV203.0.ssvcData.timestamp"}, {"timestamp": "2026-08-18T15:26:07.011Z", "date_only": false, "value": "2026-08-18T15:26:07.011Z", "kind": "other", "label": "Updated", "source": "cvelistv5", "record": "CVE-2026-9816", "field": "cveMetadata.dateUpdated"}, {"timestamp": "2026-08-18T15:26:07.011Z", "date_only": false, "value": "2026-08-18T15:26:07.011Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / CISA-ADP", "record": "CVE-2026-9816", "field": "containers.adp.0.providerMetadata.dateUpdated"}, {"timestamp": "2026-08-18T16:15:10.522Z", "date_only": false, "value": "2026-08-18T16:15:10.522934Z", "kind": "sighting", "label": "Seen", "source": "https://cyber.gc.ca/en/alerts-advisories/mattermost-security-advisory-av26-828", "record": "CVE-2026-9816", "field": "creation_timestamp", "uuid": "3beeec05-2b27-480f-aa41-c4ef755da984", "url": "https://cyber.gc.ca/en/alerts-advisories/mattermost-security-advisory-av26-828"}, {"timestamp": "2026-08-18T16:21:42.182Z", "date_only": false, "value": "2026-08-18T16:21:42.182308Z", "kind": "sighting", "label": "Seen", "source": "https://bsky.app/profile/cyfar.ca/post/3mtemrcuh442e", "record": "CVE-2026-9816", "field": "creation_timestamp", "uuid": "50bc23bb-95b7-4782-beb6-fca1e5029d66", "content": "~Cybergcca~\nCanadian Cyber Centre issued advisories for vulnerabilities in JetBrains, BeyondTrust, GitLab, and Mattermost products.\n-\nIOCs: CVE-2026-9816\n-\n#PatchNow #ThreatIntel #Vulnerability", "url": "https://bsky.app/profile/cyfar.ca/post/3mtemrcuh442e"}, {"timestamp": "2026-08-19T06:34:05.276Z", "date_only": false, "value": "2026-08-19T06:34:05.276310Z", "kind": "other", "label": "Advisory revision", "source": "csaf_ncscnl \u00b7 NCSC-2026-0305", "record": "NCSC-2026-0305", "field": "document.tracking.revision_history.0.date"}, {"timestamp": "2026-08-19T06:34:05.276Z", "date_only": false, "value": "2026-08-19T06:34:05.276310Z", "kind": "milestone", "label": "Published", "source": "csaf_ncscnl \u00b7 NCSC-2026-0305", "record": "NCSC-2026-0305", "field": "document.tracking.initial_release_date"}, {"timestamp": "2026-08-19T06:34:05.276Z", "date_only": false, "value": "2026-08-19T06:34:05.276310Z", "kind": "other", "label": "Updated", "source": "csaf_ncscnl \u00b7 NCSC-2026-0305", "record": "NCSC-2026-0305", "field": "document.tracking.current_release_date"}, {"timestamp": "2026-08-19T13:29:28.910Z", "date_only": false, "value": "2026-08-19T13:29:28.910", "kind": "other", "label": "Updated", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-9816", "record": "FKIE_CVE-2026-9816", "field": "lastModified"}, {"timestamp": "2026-08-21T01:37:07.508Z", "date_only": false, "value": "2026-08-21T01:37:07.508364Z", "kind": "sighting", "label": "Seen", "source": "https://bsky.app/profile/cyberhub.blog/post/3mtkmqcmd5q2y", "record": "CVE-2026-9816", "field": "creation_timestamp", "uuid": "ab1097e8-0112-4d32-83cf-358ac7023aa9", "content": "\ud83d\udccc CVE-2026-9816 - Mattermost versions 11.7.x <= 11.7.6, 10.11.x <= 10.11.21, 11.8.x <= 11.8.3 fail to validate BoardMember.Scheme* fields server-side on insert and arch... https://www.cyberhub.blog/cves/CVE-2026-9816", "url": "https://bsky.app/profile/cyberhub.blog/post/3mtkmqcmd5q2y"}, {"timestamp": "2026-09-29T12:47:22.478Z", "date_only": false, "value": "2026-09-29T12:47:22.478359Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cR0w/statuses/117354399908091855", "record": "CVE-2026-9816", "field": "creation_timestamp", "uuid": "75fc0369-cc72-4895-b4fd-785d2a6b94bb", "content": "RE: https://mastodon.bsd.cafe/@stefano/117354014226641780\nSure glad I moved my main workstation to Debian. :brdAngry: \nCVE-2024-5256CVE-2024-5809CVE-2025-2181CVE-2025-2210CVE-2025-2212CVE-2025-3820CVE-2025-3823CVE-2025-3862CVE-2025-3983CVE-2025-3992CVE-2025-4006CVE-2025-4010CVE-2025-4013CVE-2025-4016CVE-2026-10007CVE-2026-100079CVE-2026-2313CVE-2026-4319CVE-2026-4334CVE-2026-4596CVE-2026-5294CVE-2026-5301CVE-2026-5308CVE-2026-5310CVE-2026-5311CVE-2026-5325CVE-2026-5331CVE-2026-6405CVE-2026-6407CVE-2026-6408CVE-2026-6421CVE-2026-6828CVE-2026-6830CVE-2026-6833CVE-2026-7233CVE-2026-7240CVE-2026-7241CVE-2026-7243CVE-2026-7248CVE-2026-7249CVE-2026-7425CVE-2026-7426CVE-2026-7428CVE-2026-7429CVE-2026-7433CVE-2026-7449CVE-2026-7452CVE-2026-7473CVE-2026-7475CVE-2026-8052CVE-2026-8067CVE-2026-8075CVE-2026-8076CVE-2026-8077CVE-2026-8078CVE-2026-8079CVE-2026-8080CVE-2026-8082CVE-2026-8083CVE-2026-8084CVE-2026-8085CVE-2026-8086CVE-2026-8087CVE-2026-8091CVE-2026-8092CVE-2026-8093CVE-2026-8094CVE-2026-8095CVE-2026-8096CVE-2026-8097CVE-2026-8098CVE-2026-8099CVE-2026-8100CVE-2026-8101CVE-2026-8943CVE-2026-8944CVE-2026-8945CVE-2026-8946CVE-2026-8947CVE-2026-8948CVE-2026-8949CVE-2026-8950CVE-2026-8951CVE-2026-8952CVE-2026-8953CVE-2026-8954CVE-2026-8955CVE-2026-8956CVE-2026-8957CVE-2026-8958CVE-2026-8959CVE-2026-8960CVE-2026-8961CVE-2026-8962CVE-2026-8963CVE-2026-8964CVE-2026-8965CVE-2026-8966CVE-2026-8967CVE-2026-8968CVE-2026-8969CVE-2026-8970CVE-2026-8971CVE-2026-8972CVE-2026-8973CVE-2026-8974CVE-2026-8975CVE-2026-8976CVE-2026-8977CVE-2026-8978CVE-2026-8979CVE-2026-8980CVE-2026-8981CVE-2026-8982CVE-2026-8983CVE-2026-8984CVE-2026-8985CVE-2026-8986CVE-2026-8987CVE-2026-8988CVE-2026-8989CVE-2026-8990CVE-2026-8992CVE-2026-8993CVE-2026-8994CVE-2026-8995CVE-2026-8996CVE-2026-8997CVE-2026-8998CVE-2026-8999CVE-2026-9000CVE-2026-9001CVE-2026-9002CVE-2026-9003CVE-2026-9004CVE-2026-9005CVE-2026-9006CVE-2026-9007CVE-2026-9008CVE-2026-9009CVE-2026-9010CVE-2026-9011CVE-2026-9012CVE-2026-9013CVE-2026-9014CVE-2026-9015CVE-2026-9016CVE-2026-9017CVE-2026-9018CVE-2026-9019CVE-2026-9020CVE-2026-9021CVE-2026-9022CVE-2026-9023CVE-2026-9024CVE-2026-9025CVE-2026-9026CVE-2026-9027CVE-2026-9028CVE-2026-9029CVE-2026-9030CVE-2026-9031CVE-2026-9032CVE-2026-9033CVE-2026-9034CVE-2026-9035CVE-2026-9036CVE-2026-9037CVE-2026-9038CVE-2026-9039CVE-2026-9040CVE-2026-9041CVE-2026-9042CVE-2026-9043CVE-2026-9247CVE-2026-9248CVE-2026-9249CVE-2026-9250CVE-2026-9251CVE-2026-9252CVE-2026-9303CVE-2026-9304CVE-2026-9305CVE-2026-9306CVE-2026-9307CVE-2026-9308CVE-2026-9309CVE-2026-9310CVE-2026-9311CVE-2026-9312CVE-2026-9313CVE-2026-9314CVE-2026-9315CVE-2026-9316CVE-2026-9317CVE-2026-9318CVE-2026-9319CVE-2026-9320CVE-2026-9321CVE-2026-9322CVE-2026-9323CVE-2026-9324CVE-2026-9325CVE-2026-9326CVE-2026-9327CVE-2026-9328CVE-2026-9378CVE-2026-9379CVE-2026-9380CVE-2026-9381CVE-2026-9382CVE-2026-9383CVE-2026-9740CVE-2026-9741CVE-2026-9742CVE-2026-9743CVE-2026-9744CVE-2026-9745CVE-2026-9747CVE-2026-9748CVE-2026-9749CVE-2026-9750CVE-2026-9751CVE-2026-9752CVE-2026-9753CVE-2026-9754CVE-2026-9755CVE-2026-9756CVE-2026-9757CVE-2026-9758CVE-2026-9759CVE-2026-9760CVE-2026-9761CVE-2026-9789CVE-2026-9790CVE-2026-9791CVE-2026-9792CVE-2026-9793CVE-2026-9794CVE-2026-9795CVE-2026-9796CVE-2026-9797CVE-2026-9798CVE-2026-9799CVE-2026-9800CVE-2026-9801CVE-2026-9802CVE-2026-9803CVE-2026-9804CVE-2026-9805CVE-2026-9806CVE-2026-9807CVE-2026-9808CVE-2026-9809CVE-2026-9810CVE-2026-9811CVE-2026-9812CVE-2026-9813CVE-2026-9814CVE-2026-9815CVE-2026-9816", "url": "https://infosec.exchange/users/cR0w/statuses/117354399908091855"}]}