{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-109291 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-109291 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-109291 is a high-severity cross-site scripting vulnerability in open-webui, published on 12 Oct 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-109291 and fix it if it is affected.\n\nWhat it is: CVE-2026-109291 is a high-severity cross-site scripting vulnerability in open-webui, published on 12 Oct 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-109291 in the wild and no public exploit code.\n\nAffected product: open-webui. 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-2026-109291/ (Markdown: https://insights.sbomify.com/CVE-2026-109291/index.md)","id":"CVE-2026-109291","markdown":"https://insights.sbomify.com/CVE-2026-109291/index.md","name":"CVE-2026-109291","record":{"aliases":["GHSA-g5hc-j8wv-8p98","GHSA-qpqv-xwg8-cqpj"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["account_takeover","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Open WebUI","requires_auth":"low_privilege","summary":"Authenticated attackers can execute scripts via crafted citations to steal session tokens and take over victim accounts in Open WebUI.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":8.5,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"Open WebUI from 0.6.33 before 0.11.4 contains a cross-site scripting vulnerability that allows authenticated users to execute script in victims' sessions by storing javascript: URLs in citation embed_url fields. Attackers can share a crafted chat whose citation, when clicked, is passed to window.open, letting them steal localStorage.token and act as the victim.","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":"Open WebUI 0.6.33 before 0.11.4 Stored XSS via Citation embed_url","id":"CVE-2026-109291","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Open WebUI 0.6.27 before 0.11.4 Session Token Disclosure via OAuth-Mode Connections","id":"CVE-2026-109292"},"packages":[],"prev":{"headline":"Open WebUI 0.11.1 before 0.11.4 Stored XSS via DOCX Preview","id":"CVE-2026-109290"},"products":["open-webui"],"published":"2026-10-12","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":"total"},"state":"PUBLISHED","updated":"2026-10-23","vendors":["open-webui"]},"summary":"Authenticated attackers can execute scripts via crafted citations to steal session tokens and take over victim accounts in Open WebUI.","url":"https://insights.sbomify.com/CVE-2026-109291/"}