{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-123521 in the wild and no public exploit code.","exposure":"","fix":"No fix has been published for CVE-2026-123521 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-123521 is a medium-severity vulnerability in go-vikunja vikunja, published on 8 Nov 2026."},"fix_prompt":"Check this codebase for CVE-2026-123521 and fix it if it is affected.\n\nWhat it is: CVE-2026-123521 is a medium-severity vulnerability in go-vikunja vikunja, published on 8 Nov 2026. \nExploitation: There is no known exploitation of CVE-2026-123521 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-2026-123521/ (Markdown: https://insights.sbomify.com/CVE-2026-123521/index.md)","id":"CVE-2026-123521","markdown":"https://insights.sbomify.com/CVE-2026-123521/index.md","name":"CVE-2026-123521","record":{"aliases":["GHSA-49pj-52x6-8gpj","GHSA-8h95-jvr5-q5cg"],"analysis":null,"analysis_generated_by":null,"assigner":"VulnCheck","cpe":[],"cvss":{"score":6,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-307","name":"Improper Restriction of Excessive Authentication Attempts"}],"description":"Vikunja before 2.7.1 contains an improper restriction of excessive authentication attempts vulnerability that allows session holders to brute-force account passwords via unthrottled re-authentication endpoints. Attackers with a stolen session can guess the password via /user/settings/totp/disable without lockout, then disable TOTP without a code for persistent account takeover.","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 Password Brute-Force via TOTP Disable Endpoint","id":"CVE-2026-123521","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 Task Information Disclosure via Kanban Bucket Move Webhook","id":"CVE-2026-123522"},"nickname":null,"packages":[],"prev":{"headline":"Vikunja 0.18.0 before 2.7.1 Privilege Escalation via Account Deletion","id":"CVE-2026-123520"},"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":"2026-11-10","vendors":["go-vikunja"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-123521/"}