{"id":"CVE-2026-123284","kind":"vulnerability","aliases":["CVE-2026-123284"],"related":[],"title":"JetBrains Datalore: view-only collaborators can modify shared workspace content","description":"In JetBrains Datalore before 2026.4 improper authorisation on workspace moves allowed view-only collaborators to modify shared content","summary":"Before Datalore 2026.4, a workspace move did not check authorisation properly, so a collaborator with view-only access could change shared content. The sources do not describe a remote exploit path.","severity":"medium","cvss":6.5,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["collaboration","datalore","jetbrains","other"],"not_affected_if":["no-shared-workspaces","version-2026.4-or-later"],"how_to_check":"- Check the installed Datalore version against the fixed release 2026.4 in the vendor's release notes.","fix":"- Move to Datalore `2026.4` or later.","status":"open","published_at":"2026-11-06T11:17:06+00:00","first_seen_at":"2026-11-06T11:41:24+00:00","triaged_at":"2026-11-06T11:42:17+00:00","updated_at":"2026-11-06T11:42:17+00:00","category":"other","confidence":0.6,"triage":{"at":"2026-11-06T11:42:17Z","model":"claude-haiku-5-5","output":{"fix":"- Move to Datalore `2026.4` or later.","reach":"network","title":"JetBrains Datalore: view-only collaborators can modify shared workspace content","impact":"medium","summary":"Before Datalore 2026.4, a workspace move did not check authorisation properly, so a collaborator with view-only access could change shared content. The sources do not describe a remote exploit path.","audience":"businesses","category":"other","nicknames":[],"who_cares":["datalore","jetbrains","collaboration"],"confidence":0.6,"fix_status":"available","needs_auth":"yes","worst_case":"View-only collaborator modifies shared workspace content","analyst_note":"","how_to_check":"- Check the installed Datalore version against the fixed release 2026.4 in the vendor's release notes.\n- unknown for any further steps; the sources do not say.","plain_action":"","needs_analyst":false,"not_affected_if":["version-2026.4-or-later","no-shared-workspaces"],"who_is_affected":"Teams that use Datalore with shared workspaces and give some collaborators view-only access. Exposure depends on the installed version being before 2026.4. Teams on 2026.4 or later, or with no shared workspaces, are not affected by this flaw.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000651,"input_tokens":4174,"output_tokens":467,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-123284':14A,17A '-2026':13A,16A '2026.4':23B,57C 'access':39B 'allow':63C 'authoris':30B,59C 'chang':41B 'check':29B 'collabor':6A,18B,34B,67C 'content':11A,43B,71C 'could':40B 'cve':12A,15A 'datalor':2A,19B,22B,55C 'describ':48B 'exploit':51B 'improp':58C 'jetbrain':1A,20B,54C 'modifi':8A,69C 'move':26B,62C 'path':52B 'proper':31B 'remot':50B 'share':9A,42B,70C 'sourc':45B 'view':4A,37B,65C 'view-on':3A,36B,64C 'workspac':10A,25B,61C","nicknames":[],"mitigations":[],"who_affected":"Teams that use Datalore with shared workspaces and give some collaborators view-only access. Exposure depends on the installed version being before 2026.4. Teams on 2026.4 or later, or with no shared workspaces, are not affected by this flaw.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["collaboration","datalore","jetbrains","medium","other"],"campaign_type":null,"search_a":"'-123284':14A,17A '-2026':13A,16A 'collabor':6A 'content':11A 'cve':12A,15A 'datalor':2A 'jetbrain':1A 'modifi':8A 'share':9A 'view':4A 'view-on':3A 'workspac':10A","search_b":"'2026.4':23B 'access':39B 'authoris':30B 'chang':41B 'check':29B 'collabor':18B,34B 'content':43B 'could':40B 'datalor':19B,22B 'describ':48B 'exploit':51B 'jetbrain':20B 'move':26B 'path':52B 'proper':31B 'remot':50B 'share':42B 'sourc':45B 'view':37B 'view-on':36B 'workspac':25B","search_c":"'2026.4':57C 'allow':63C 'authoris':59C 'collabor':67C 'content':71C 'datalor':55C 'improp':58C 'jetbrain':54C 'modifi':69C 'move':62C 'share':70C 'view':65C 'view-on':64C 'workspac':61C","first_public_at":"2026-11-06T11:17:06+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H","cvss_by":"cve@jetbrains.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-123284","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-123284","severity":null,"published_at":"2026-11-06T11:17:06+00:00","modified_at":"2026-11-06T11:17:06+00:00","first_seen_at":"2026-11-06T11:41:24+00:00","fetched_at":"2026-11-06T11:41:24+00:00","note":null}],"documents":[],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}