{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-79680 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-79680 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-79680 is a medium-severity authentication bypass vulnerability in qt, published on 24 Sep 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-2026-79680 and fix it if it is affected.\n\nWhat it is: CVE-2026-79680 is a medium-severity authentication bypass vulnerability in qt, published on 24 Sep 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-2026-79680 in the wild and no public exploit code.\n\nAffected product: qt. 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-2026-79680/ (Markdown: https://insights.sbomify.com/CVE-2026-79680/index.md)","id":"CVE-2026-79680","markdown":"https://insights.sbomify.com/CVE-2026-79680/index.md","name":"CVE-2026-79680","record":{"aliases":["GHSA-wc8f-vjgx-jxrw"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["account_takeover","data_read","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"Qt VNC Server module","requires_auth":"none","summary":"Attackers can bypass password authentication in Qt VNC Server using a modified client to gain unauthorized remote access to shared applications.","user_interaction":"required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Qt","cpe":[],"cvss":{"score":4.5,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/V:D/RE:L","version":"4.0"},"cwes":[{"id":"CWE-288","name":"Authentication Bypass Using an Alternate Path or Channel"}],"description":"Authentication bypass vulnerability in the password authentication mechanism of the Qt VNC Server module. An attacker using a specially modified VNC client that violates the RFB protocol can bypass Qt VNC Server's password authentication and gain unauthorized remote access to the shared application, compromising the confidentiality and integrity of the session.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Authentication bypass vulnerability in the password authentication mechanism of the Qt VNC Server module","id":"CVE-2026-79680","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Command injection in PowerStore 1000T","id":"CVE-2026-79682"},"packages":[],"prev":{"headline":"Use of Weak Credentials","id":"CVE-2026-79679"},"products":["qt"],"published":"2026-09-24","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":"2026-09-24","vendors":["qt"]},"summary":"Attackers can bypass password authentication in Qt VNC Server using a modified client to gain unauthorized remote access to shared applications.","url":"https://insights.sbomify.com/CVE-2026-79680/"}