{"id":"CVE-2026-123514","kind":"vulnerability","aliases":["CVE-2026-123514"],"related":[],"title":"Vikunja: failed and repeated exports leave archives on disk","description":"Vikunja before 2.7.1 contains an improper resource cleanup vulnerability that leaves full-data export archives orphaned on disk after re-exports, failed exports, or account deletion. Authenticated users can repeatedly re-trigger exports containing all their attachments to exhaust disk storage, while deleted users' personal data remains retained indefinitely.","summary":"Vikunja leaves full-data export archives on disk after re-exports, failed exports, or account deletion. An authenticated user can repeatedly trigger exports to fill disk storage, and deleted users' personal data stays on the server indefinitely.","severity":"medium","cvss":5.3,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["disk-storage","package","personal-data","self-hosted","vikunja"],"not_affected_if":["auth-required","fixed-version"],"how_to_check":"- Check the Vikunja version with the server binary or the running image tag; affected builds are before `2.7.1`.\n- Look in the Vikunja export directory on the server for leftover full-data export archives from old or failed exports.","fix":"- Vikunja: move to `2.7.1` or later.","status":"open","published_at":"2026-11-08T02:16:40+00:00","first_seen_at":"2026-11-08T02:21:08+00:00","triaged_at":"2026-11-08T02:25:20+00:00","updated_at":"2026-11-08T02:25:20+00:00","category":"package","confidence":0.6,"triage":{"at":"2026-11-08T02:25:20Z","model":"claude-haiku-5-5","output":{"fix":"- Vikunja: move to `2.7.1` or later.","reach":"network","title":"Vikunja: failed and repeated exports leave archives on disk","impact":"medium","summary":"Vikunja leaves full-data export archives on disk after re-exports, failed exports, or account deletion. An authenticated user can repeatedly trigger exports to fill disk storage, and deleted users' personal data stays on the server indefinitely.","audience":"businesses","category":"package","nicknames":[],"who_cares":["vikunja","self-hosted","disk-storage","personal-data"],"confidence":0.6,"fix_status":"available","needs_auth":"yes","worst_case":"authenticated users exhaust disk; deleted users' data persists","analyst_note":"","how_to_check":"- Check the Vikunja version with the server binary or the running image tag; affected builds are before `2.7.1`.\n- Look in the Vikunja export directory on the server for leftover full-data export archives from old or failed exports.","plain_action":"","needs_analyst":false,"not_affected_if":["fixed-version","auth-required"],"who_is_affected":"Self-hosted or managed Vikunja servers running a version before `2.7.1` where users can request full data exports. Exposure needs a logged-in account; instances with exports disabled or with no user accounts are less exposed. unknown whether the sources name a specific export setting.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000684,"input_tokens":4285,"output_tokens":512,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-123514':12A,15A '-2026':11A,14A '2.7.1':68C 'account':43B,92C 'archiv':7A,33B,81C 'attach':105C 'authent':46B,94C 'cleanup':73C 'contain':69C,102C 'cve':10A,13A 'data':22B,31B,60B,79C,114C 'delet':44B,57B,93C,111C 'disk':9A,17B,35B,54B,84C,108C 'disk-storag':16B 'exhaust':107C 'export':5A,32B,39B,41B,51B,80C,88C,90C,101C 'fail':2A,40B,89C 'fill':53B 'full':30B,78C 'full-data':29B,77C 'host':25B 'improp':71C 'indefinit':65B,117C 'leav':6A,28B,76C 'orphan':82C 'packag':19B 'person':21B,59B,113C 'personal-data':20B 're':38B,87C,99C 're-export':37B,86C 're-trigg':98C 'remain':115C 'repeat':4A,49B,97C 'resourc':72C 'retain':116C 'self':24B 'self-host':23B 'server':64B 'stay':61B 'storag':18B,55B,109C 'trigger':50B,100C 'user':47B,58B,95C,112C 'vikunja':1A,26B,27B,66C 'vulner':74C","nicknames":[],"mitigations":[],"who_affected":"Self-hosted or managed Vikunja servers running a version before `2.7.1` where users can request full data exports. Exposure needs a logged-in account; instances with exports disabled or with no user accounts are less exposed. unknown whether the sources name a specific export setting.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["diskstorage","medium","package","personaldata","selfhosted","vikunja"],"campaign_type":null,"search_a":"'-123514':12A,15A '-2026':11A,14A 'archiv':7A 'cve':10A,13A 'disk':9A 'export':5A 'fail':2A 'leav':6A 'repeat':4A 'vikunja':1A","search_b":"'account':43B 'archiv':33B 'authent':46B 'data':22B,31B,60B 'delet':44B,57B 'disk':17B,35B,54B 'disk-storag':16B 'export':32B,39B,41B,51B 'fail':40B 'fill':53B 'full':30B 'full-data':29B 'host':25B 'indefinit':65B 'leav':28B 'packag':19B 'person':21B,59B 'personal-data':20B 're':38B 're-export':37B 'repeat':49B 'self':24B 'self-host':23B 'server':64B 'stay':61B 'storag':18B,55B 'trigger':50B 'user':47B,58B 'vikunja':26B,27B","search_c":"'2.7.1':68C 'account':92C 'archiv':81C 'attach':105C 'authent':94C 'cleanup':73C 'contain':69C,102C 'data':79C,114C 'delet':93C,111C 'disk':84C,108C 'exhaust':107C 'export':80C,88C,90C,101C 'fail':89C 'full':78C 'full-data':77C 'improp':71C 'indefinit':117C 'leav':76C 'orphan':82C 'person':113C 're':87C,99C 're-export':86C 're-trigg':98C 'remain':115C 'repeat':97C 'resourc':72C 'retain':116C 'storag':109C 'trigger':100C 'user':95C,112C 'vikunja':66C 'vulner':74C","first_public_at":"2026-10-22T10:04:37+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","cvss_by":"disclosure@vulncheck.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-123514","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-123514","severity":null,"published_at":"2026-11-08T02:16:40+00:00","modified_at":"2026-11-08T02:16:40+00:00","first_seen_at":"2026-11-08T02:21:08+00:00","fetched_at":"2026-11-08T02:21:08+00:00","note":null}],"documents":[{"id":99177,"url":"https://github.com/go-vikunja/vikunja/security/advisories/GHSA-7gmh-4fw6-8xc5","title":"Vendor advisory: github.com","kind":"vendor","source":"nvd","publisher":"vendor","text":null,"published_at":"2026-10-22T10:04:37+00:00","relation":"advisory","confidence":null,"note":"Vendor advisory: github.com"},{"id":99178,"url":"https://www.vulncheck.com/advisories/vikunja-before-2.7.1-orphaned-export-archives-enable-disk-exhaustion","title":"Third-party advisory: www.vulncheck.com","kind":"advisory","source":"nvd","publisher":"research","text":null,"published_at":null,"relation":"advisory","confidence":null,"note":"Third-party advisory: www.vulncheck.com"}],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}