{"answers":{"affected":"3 open source packages ship an affected version, including code.vikunja.io/api.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-91970 exists.","fix":"Upgrade code.vikunja.io/api to 2.6.0 or later.","what":"CVE-2026-91970 is a high-severity denial of service vulnerability in go-vikunja vikunja, published on 15 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-91970 and fix it if it is affected.\n\nWhat it is: CVE-2026-91970 is a high-severity denial of service vulnerability in go-vikunja vikunja, published on 15 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-91970 exists.\n\nAffected packages and fixed versions:\n- code.vikunja.io/api (Go): affected all versions; no fix listed\n- code.vikunja.io/api (Go): affected from 2.5.0; fixed in 2.6.0\n- code.vikunja.io/api (Go): affected from 2.5.0; fixed in 2.6.0\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-91970/ (Markdown: https://insights.sbomify.com/CVE-2026-91970/index.md)","id":"CVE-2026-91970","markdown":"https://insights.sbomify.com/CVE-2026-91970/index.md","name":"CVE-2026-91970","record":{"aliases":["GHSA-wq92-8x3r-fm38","GO-2026-6757"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Vikunja task manager","requires_auth":"low_privilege","summary":"Authenticated attackers can cause denial of service in Vikunja by exploiting a resource exhaustion flaw in the Planka migration feature.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":7.1,"severity":"high","source":"cna","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"},"cwes":[{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"}],"description":"Vikunja 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.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Vikunja before 2.6.0 Resource Exhaustion via Planka Migration","id":"CVE-2026-91970","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":3,"n_references":2,"next":{"headline":"Vikunja before 2.6.0 Denial of Service via Avatar Upload","id":"CVE-2026-91971"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"code.vikunja.io/api","purl":"pkg:golang/code.vikunja.io/api","source":"GO-2026-6757"},{"ecosystem":"Go","fixed":["2.6.0"],"introduced":["2.5.0"],"last_affected":[],"package":"code.vikunja.io/api","purl":null,"source":"GHSA-wq92-8x3r-fm38"},{"ecosystem":"Go","fixed":["2.6.0"],"introduced":["2.5.0"],"last_affected":[],"package":"code.vikunja.io/api","purl":"pkg:golang/code.vikunja.io/api","source":"GHSA-wq92-8x3r-fm38"}],"prev":{"headline":"vikunja before 2.6.0 Resource Exhaustion via CSV Migration","id":"CVE-2026-91969"},"products":["vikunja"],"published":"2026-09-15","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-15","vendors":["go-vikunja"]},"summary":"Authenticated attackers can cause denial of service in Vikunja by exploiting a resource exhaustion flaw in the Planka migration feature.","url":"https://insights.sbomify.com/CVE-2026-91970/"}