{"affected":[{"defaultStatus":"unaffected","ecosystem":"golang","packageName":"code.vikunja.io/api","product":"vikunja","source":"CNA: VulnCheck","vendor":"go-vikunja","versions":[{"lessThan":"2.7.1","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"2.7.1","versionType":"semver"}]}],"cveId":"CVE-2026-123516","cwes":["CWE-770"],"description":"Vikunja before 2.7.1 contains a resource exhaustion vulnerability in the vikunja-file ZIP importer that allows authenticated users to consume CPU and memory by uploading archives with excessive entries. Attackers can upload export ZIPs containing many empty or non-files/ entries that bypass the per-entry caps, forcing scanArchive to process every entry twice.","epss":{"date":"2026-11-10","percentile":0.22559,"score":0.00297},"exploits":[],"kev":null,"metrics":[{"score":7.1,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},{"score":4.3,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},{"score":7.1,"severity":"high","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/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","version":"4.0"},{"score":4.3,"severity":"medium","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","version":"3.1"}],"modifiedAt":1794486735609,"publishedAt":1794101848063,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/go-vikunja/vikunja/security/advisories/GHSA-mqq8-869v-48q8"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/vikunja-before-2.7.1-resource-exhaustion-via-vikunja-file-zip-import"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/go-vikunja/vikunja/security/advisories/GHSA-mqq8-869v-48q8"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://www.vulncheck.com/advisories/vikunja-before-2.7.1-resource-exhaustion-via-vikunja-file-zip-import"}],"remediation":[],"revision":"8ffebb30b86362045ab14a41b6ac355abd2e8a1ff3fda0ce7142617e2327ac5d","sources":[{"modifiedAt":1794486735609,"name":"CNA: VulnCheck","retrievedAt":1794488920788,"url":"https://www.cve.org/CVERecord?id=CVE-2026-123516"},{"modifiedAt":1794104200673,"name":"NVD","retrievedAt":1794118560521,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-123516"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1794377576384,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-123516"}],"ssvc":{"assessedAt":1794486513141,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"Vikunja before 2.7.1 Resource Exhaustion via Vikunja-File ZIP Import","updatedAt":1794488920788}