{"id":"EUVD-2026-78647","revision":"d39749881a9046db82b49e8ce346b558","records":[{"revision":"d39749881a9046db82b49e8ce346b558","observedAt":"2026-10-30T12:53:13.688+00:00","statement":{"source":"euvd","id":"EUVD-2026-78647","aliases":["CVE-2026-91971","GHSA-69rj-q3v9-vffp","GHSA-4vh2-39rq-rq8j"],"title":"Vikunja before 2.6.0 fails to apply pixel decode limits to avatar and project-background upload endpoints, allowing authenticated users to upload crafted images that decode to excessive pixel counts. Attackers can upload small images with e…","description":"Vikunja before 2.6.0 fails to apply pixel decode limits to avatar and project-background upload endpoints, allowing authenticated users to upload crafted images that decode to excessive pixel counts. Attackers can upload small images with extreme aspect ratios that consume significant CPU and memory during processing, causing denial of service through repeated or concurrent uploads.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 4.0","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","score":7.1,"severity":null}],"references":["https://github.com/go-vikunja/vikunja/security/advisories/GHSA-4vh2-39rq-rq8j","https://www.vulncheck.com/advisories/vikunja-before-2.6.0-denial-of-service-via-avatar-upload"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-78647","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Sep 15, 2026, 3:18:22 PM","dateUpdated":"Sep 21, 2026, 6:48:39 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-78647","identifiers":["EUVD-2026-78647","CVE-2026-91971","GHSA-69rj-q3v9-vffp","GHSA-4vh2-39rq-rq8j"]},"retained":false,"historicalAffected":[]}],"coverage":[]}