{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-41126 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-41126 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-41126 is a medium-severity vulnerability in bigbluebutton, published on 21 Apr 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-41126 and fix it if it is affected.\n\nWhat it is: CVE-2026-41126 is a medium-severity vulnerability in bigbluebutton, published on 21 Apr 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-41126 in the wild and no public exploit code.\n\nAffected product: bigbluebutton. 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-2026-41126/ (Markdown: https://insights.sbomify.com/CVE-2026-41126/index.md)","id":"CVE-2026-41126","markdown":"https://insights.sbomify.com/CVE-2026-41126/index.md","name":"CVE-2026-41126","record":{"aliases":["GHSA-cvwj-4pcp-f3g8"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Virtual classroom platform","requires_auth":"none","summary":"Attackers can redirect users to malicious sites via the logoutURL parameter in BigBlueButton join API requests.","user_interaction":"required","vuln_class":"open_redirect"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":4.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-601","name":"URL Redirection to Untrusted Site"}],"description":"BigBlueButton is an open-source virtual classroom. Versions prior to 3.0.24 have an Open Redirect through bigbluebutton/api/join via get-parameter \"logoutURL.\" Version 3.0.24 has adjusted the handling of requests with incorrect checksum so that the default logoutURL is used. No known workarounds are available.","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":"BigBlueButton has Open Redirect through bigbluebutton/api/join via get-parameter \"logoutURL\"","id":"CVE-2026-41126","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"open_redirect","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"BigBlueButton's missing authorization allows viewer to inject/overwrite captions","id":"CVE-2026-41127"},"packages":[],"prev":{"headline":"SQL injection in blueplanet 100 NX3 M8","id":"CVE-2026-41125"},"products":["bigbluebutton"],"published":"2026-04-21","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":"2026-04-22","vendors":["bigbluebutton"]},"summary":"Attackers can redirect users to malicious sites via the logoutURL parameter in BigBlueButton join API requests.","url":"https://insights.sbomify.com/CVE-2026-41126/"}