{"id":"EUVD-2026-78644","enisaUuid":"56e8a8e3-4b7d-334e-86af-6c737254ffb0","description":"vikunja versions before 2.6.0 contain a resource exhaustion vulnerability in the task-filter endpoint that accepts deeply nested filter expressions without recursion depth limits. Authenticated attackers can supply thousands of nested parentheses in the filter query parameter to exhaust memory and terminate the API process.","datePublished":"Sep 15, 2026, 3:18:20 PM","dateUpdated":"Sep 15, 2026, 3:56:07 PM","baseScore":7.1,"baseScoreVersion":"4.0","baseScoreVector":"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","references":"https://github.com/go-vikunja/vikunja/security/advisories/GHSA-xxc3-xpmc-vmvr\nhttps://www.vulncheck.com/advisories/vikunja-before-2.6.0-denial-of-service-via-unbounded-filter-recursion\n","aliases":"CVE-2026-91968\nGHSA-jfw3-2gcf-23r5\nGHSA-xxc3-xpmc-vmvr\n","assigner":"VulnCheck","epss":0.44,"enisaIdProduct":[{"id":"c5942383-52bc-3038-ad2e-f910a97ff0ac","product":{"name":"vikunja","vendor":{"name":"go-vikunja"}},"product_version":"2.5.0 \u003c2.6.0"}],"enisaIdVendor":[{"id":"d5f7b4d0-60a6-38d4-9186-2c7e8f03e11c","vendor":{"name":"go-vikunja"}}],"enisaIdVulnerability":[{"id":"d071c197-aabe-37de-907c-c94daa8bc7a3","vulnerability":{"id":"CVE-2026-91968","description":"vikunja versions before 2.6.0 contain a resource exhaustion vulnerability in the task-filter endpoint that accepts deeply nested filter expressions without recursion depth limits. Authenticated attackers can supply thousands of nested parentheses in the filter query parameter to exhaust memory and terminate the API process.","datePublished":"Sep 15, 2026, 3:18:20 PM","dateUpdated":"Sep 15, 2026, 3:56:07 PM","status":"PUBLISHED","baseScore":7.1,"baseScoreVersion":"4.0","baseScoreVector":"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","references":"https://github.com/go-vikunja/vikunja/security/advisories/GHSA-xxc3-xpmc-vmvr\nhttps://www.vulncheck.com/advisories/vikunja-before-2.6.0-denial-of-service-via-unbounded-filter-recursion\n","enisa_id":"EUVD-2026-78644\n","assigner":"VulnCheck","epss":0.44,"dataProcessed":"Nov 5, 2026, 7:17:35 AM","vulnerabilityProduct":[{"id":"afcc9c55-4940-38ac-bab4-6f8743bc9a89","product":{"name":"vikunja","vendor":{"name":"go-vikunja"}},"product_version":"2.5.0 \u003c2.6.0"}],"vulnerabilityVendor":[{"id":"2274f7d3-3ec1-3649-ae22-3ed0f2207872","vendor":{"name":"go-vikunja"}}]}},{"id":"ef961a23-568f-307f-be5b-93a2dc145fb5","vulnerability":{"id":"GHSA-xxc3-xpmc-vmvr","description":"Vikunja: Unbounded nested task-filter recursion permits API process termination","datePublished":"Oct 9, 2026, 8:53:03 PM","dateUpdated":"Oct 9, 2026, 8:53:03 PM","baseScore":0.0,"references":"https://github.com/go-vikunja/vikunja/security/advisories/GHSA-xxc3-xpmc-vmvr\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-91968\nhttps://github.com/go-vikunja/vikunja/pull/3688\nhttps://github.com/go-vikunja/vikunja\nhttps://github.com/go-vikunja/vikunja/releases/tag/v2.6.0\nhttps://www.vulncheck.com/advisories/vikunja-before-2.6.0-denial-of-service-via-unbounded-filter-recursion\n","enisa_id":"EUVD-2026-78644\n","aliases":"GHSA-xxc3-xpmc-vmvr\nCVE-2026-91968\n","epss":0.0,"dataProcessed":"Nov 1, 2026, 2:07:07 AM","vulnerabilityProduct":[],"vulnerabilityVendor":[]}},{"id":"f07ad35e-b72b-3184-a84d-9723559fa99b","vulnerability":{"id":"GHSA-jfw3-2gcf-23r5","description":"Duplicate Advisory: Vikunja: Unbounded nested task-filter recursion permits API process termination","datePublished":"Sep 15, 2026, 6:32:30 PM","dateUpdated":"Oct 9, 2026, 8:52:57 PM","baseScore":0.0,"references":"https://github.com/go-vikunja/vikunja/security/advisories/GHSA-xxc3-xpmc-vmvr\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-91968\nhttps://www.vulncheck.com/advisories/vikunja-before-2.6.0-denial-of-service-via-unbounded-filter-recursion\n","enisa_id":"EUVD-2026-78644\n","aliases":"GHSA-jfw3-2gcf-23r5\n","epss":0.0,"dataProcessed":"Nov 1, 2026, 2:05:47 AM","vulnerabilityProduct":[],"vulnerabilityVendor":[]}}],"enisaIdAdvisory":[]}