{"id":"CVE-2026-123507","aliases":["EUVD-2026-119392","GHSA-hm4w-h7v8-ch43","GHSA-pvhp-x32p-w9mc"],"status":"published","title":"Vikunja 0.24.0 before 2.7.1 Denial of Service via Nil Bucket Filter","description":"Vikunja from 0.24.0 before 2.7.1 contains a nil pointer dereference vulnerability that allows project admins to break project views by saving a filter-mode bucket configuration with a null filter. Because validateProjectViewFilters skips nil entries, every subsequent read of the view panics in kanban and task collection code, returning HTTP 500 to all project members.","severity":{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00291,"percentile":0.21964,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-476"],"published":"2026-11-08T01:37:21Z","modified":"2026-11-08T10:45:39Z","products":[{"vendor":"go-vikunja","product":"vikunja"}],"references":[{"url":"https://github.com/go-vikunja/vikunja/security/advisories/GHSA-hm4w-h7v8-ch43","tags":["vendor-advisory","advisory"]},{"url":"https://www.vulncheck.com/advisories/vikunja-0.24.0-before-2.7.1-denial-of-service-via-nil-bucket-filter","tags":["third-party-advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-123507","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-pvhp-x32p-w9mc"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/123xxx/CVE-2026-123507.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-123507","title":"Vikunja 0.24.0 before 2.7.1 Denial of Service via Nil Bucket Filter","description":"Vikunja from 0.24.0 before 2.7.1 contains a nil pointer dereference vulnerability that allows project admins to break project views by saving a filter-mode bucket configuration with a null filter. Because validateProjectViewFilters skips nil entries, every subsequent read of the view panics in kanban and task collection code, returning HTTP 500 to all project members.","status":"published","published":"2026-11-08T01:37:21.778Z","modified":"2026-11-12T13:57:08.846Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":2.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"cna"}],"cwes":["CWE-476"],"updated_at":"2026-11-08T02:36:49.037074Z"}],"euvd":[{"id":"EUVD-2026-119392","description":"Vikunja from 0.24.0 before 2.7.1 contains a nil pointer dereference vulnerability that allows project admins to break project views by saving a filter-mode bucket configuration with a null filter. Because validateProjectViewFilters skips nil entries, every subsequent read of the view panics in kanban and task collection code, returning HTTP 500 to all project members.","status":"published","published":"2026-11-08T01:37:21Z","modified":"2026-11-12T13:57:08Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-08T06:12:04.782489Z"}],"ghsa":[{"id":"GHSA-pvhp-x32p-w9mc","title":"Vikunja from 0.24.0 before 2.7.1 contains a nil pointer dereference vulnerability that allows...","description":"Vikunja from 0.24.0 before 2.7.1 contains a nil pointer dereference vulnerability that allows project admins to break project views by saving a filter-mode bucket configuration with a null filter. Because validateProjectViewFilters skips nil entries, every subsequent read of the view panics in kanban and task collection code, returning HTTP 500 to all project members.","status":"published","published":"2026-11-08T03:30:28Z","modified":"2026-11-08T03:30:34Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/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","level":"medium"},{"version":"3.1","score":2.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L","level":"low"}],"cwes":["CWE-476"],"updated_at":"2026-11-08T03:41:53.166172Z"}],"nvd":[{"id":"CVE-2026-123507","description":"Vikunja from 0.24.0 before 2.7.1 contains a nil pointer dereference vulnerability that allows project admins to break project views by saving a filter-mode bucket configuration with a null filter. Because validateProjectViewFilters skips nil entries, every subsequent read of the view panics in kanban and task collection code, returning HTTP 500 to all project members.","status":"published","published":"2026-11-08T02:16:38.96Z","modified":"2026-11-12T14:17:24.367Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/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","level":"medium","assessor":"secondary"},{"version":"3.1","score":2.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"secondary"}],"cwes":["CWE-476"],"updated_at":"2026-11-12T15:31:32.275584Z"}],"osv":[{"id":"CVE-2026-123507","title":"Vikunja 0.24.0 before 2.7.1 Denial of Service via Nil Bucket Filter","description":"Vikunja from 0.24.0 before 2.7.1 contains a nil pointer dereference vulnerability that allows project admins to break project views by saving a filter-mode bucket configuration with a null filter. Because validateProjectViewFilters skips nil entries, every subsequent read of the view panics in kanban and task collection code, returning HTTP 500 to all project members.","status":"published","published":"2026-11-08T01:37:21.778Z","modified":"2026-11-09T02:47:16.998227086Z","cvss":[{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-476"],"updated_at":"2026-11-08T11:04:05.022583Z"}]}}