{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-66842 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-66842 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-66842 is a high-severity vulnerability in F5 BIG-IP, published on 2 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-66842 and fix it if it is affected.\n\nWhat it is: CVE-2026-66842 is a high-severity vulnerability in F5 BIG-IP, published on 2 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-66842 in the wild and no public exploit code.\n\nAffected product: F5 BIG-IP. 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-2026-66842/ (Markdown: https://insights.sbomify.com/CVE-2026-66842/index.md)","id":"CVE-2026-66842","markdown":"https://insights.sbomify.com/CVE-2026-66842/index.md","name":"CVE-2026-66842","record":{"aliases":["GHSA-cgm7-wqwh-h7hh"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"F5 BIG-IP","requires_auth":"low_privilege","summary":"Authenticated attackers can escalate privileges by creating administrative accounts via the TMUI interface on F5 BIG-IP systems.","user_interaction":"not_required","vuln_class":"privilege_escalation"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"f5","cpe":[],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-918","name":"Server-Side Request Forgery"}],"description":"BIG-IP has a vulnerability where an authenticated user of any role may be able to create administrative user accounts through an undisclosed request to Traffic Management User Interface (TMUI).\n\nImpact:\n\nThis vulnerability may allow an authenticated attacker with network access to the BIG-IP management interface to escalate privileges by creating administrative accounts on the BIG-IP system. There is no data plane exposure; this is a control plane issue only.\n\nNote: Software versions which have reached End of Technical Support (EoTS) are not evaluated.","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":"BIG-IP and BIG-IQ Configuration utility vulnerability","id":"CVE-2026-66842","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"privilege_escalation","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"html_sanitize_ex HTML5 scrubber keeps attacker-supplied `\u003cobject\u003e` elements, allowing untrusted content embedding","id":"CVE-2026-66843"},"packages":[],"prev":{"headline":"Information disclosure in XING CPTrans-ME-X","id":"CVE-2026-66840"},"products":["BIG-IP","BIG-IQ"],"published":"2026-09-02","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":"2026-09-03","vendors":["F5"]},"summary":"Authenticated attackers can escalate privileges by creating administrative accounts via the TMUI interface on F5 BIG-IP systems.","url":"https://insights.sbomify.com/CVE-2026-66842/"}