{"id":"GHSA-c2g7-39fr-cp8q","summary":"Duplicate Advisory: Vikunja: Planka migration retains an unbounded aggregate of attacker-served attachments and can OOM the API","details":"### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-wq92-8x3r-fm38. This link is maintained to preserve external references.\n\n### Original Description\nVikunja versions before 2.6.0 contain a resource exhaustion vulnerability in the Planka migrator that fails to enforce aggregate memory budgets during migration jobs. Authenticated attackers can submit migration requests pointing to attacker-controlled servers advertising numerous size-compliant attachments, exhausting worker memory and causing denial of service for all users.","modified":"2026-10-09T21:00:06.084771911Z","published":"2026-09-15T18:32:30Z","withdrawn":"2026-10-09T20:53:17Z","database_specific":{"nvd_published_at":"2026-09-15T16:17:53Z","cwe_ids":["CWE-770"],"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2026-10-09T20:53:17Z"},"references":[{"type":"WEB","url":"https://github.com/go-vikunja/vikunja/security/advisories/GHSA-wq92-8x3r-fm38"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-91970"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/vikunja-before-2.6.0-resource-exhaustion-via-planka-migration"}],"affected":[{"package":{"name":"code.vikunja.io/api","ecosystem":"Go","purl":"pkg:golang/code.vikunja.io/api"},"ranges":[{"type":"SEMVER","events":[{"introduced":"2.5.0"}]}],"database_specific":{"last_known_affected_version_range":"\u003c 2.6.0","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/09/GHSA-c2g7-39fr-cp8q/GHSA-c2g7-39fr-cp8q.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V4","score":"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"}]}