{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-123511 in the wild and no public exploit code.","exposure":"","fix":"No fix has been published for CVE-2026-123511 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-123511 is a medium-severity vulnerability in go-vikunja vikunja, published on 8 Nov 2026."},"fix_prompt":"Check this codebase for CVE-2026-123511 and fix it if it is affected.\n\nWhat it is: CVE-2026-123511 is a medium-severity vulnerability in go-vikunja vikunja, published on 8 Nov 2026. \nExploitation: There is no known exploitation of CVE-2026-123511 in the wild and no public exploit code.\n\nAffected product: go-vikunja vikunja. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2026-123511/ (Markdown: https://insights.sbomify.com/CVE-2026-123511/index.md)","id":"CVE-2026-123511","markdown":"https://insights.sbomify.com/CVE-2026-123511/index.md","name":"CVE-2026-123511","record":{"aliases":["GHSA-c934-xjq2-mrg3","GHSA-fvq6-3pq9-7pfq"],"analysis":null,"analysis_generated_by":null,"assigner":"VulnCheck","cpe":[],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"}],"description":"Vikunja before 2.7.1 contains an uncontrolled resource consumption vulnerability that allows authenticated CalDAV clients to create unbounded dummy tasks by sending VTODOs with thousands of RELATED-TO properties. Attackers can repeat unknown related UIDs in a single PUT request to generate thousands of task, relation, and event rows, bloating the database and overloading the event pipeline.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Vikunja before 2.7.1 Resource Exhaustion via CalDAV VTODO RELATED-TO Entries","id":"CVE-2026-123511","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Vikunja before 2.7.1 Sensitive Token Exposure via URL Query in Access Logs","id":"CVE-2026-123512"},"nickname":null,"packages":[],"prev":{"headline":"Vikunja before 2.7.1 Plugin and Log Directories Not Anchored to Rootpath","id":"CVE-2026-123510"},"products":["vikunja"],"published":"2026-11-08","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-11-12","vendors":["go-vikunja"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-123511/"}