{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-109506 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-109506 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-109506 is a medium-severity authentication bypass vulnerability in TP-Link Systems Inc. RE190 v5, published on 14 Oct 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-109506 and fix it if it is affected.\n\nWhat it is: CVE-2026-109506 is a medium-severity authentication bypass vulnerability in TP-Link Systems Inc. RE190 v5, published on 14 Oct 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-109506 in the wild and no public exploit code.\n\nAffected product: TP-Link Systems Inc. RE190 v5. 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-2026-109506/ (Markdown: https://insights.sbomify.com/CVE-2026-109506/index.md)","id":"CVE-2026-109506","markdown":"https://insights.sbomify.com/CVE-2026-109506/index.md","name":"CVE-2026-109506","record":{"aliases":["GHSA-v8j9-72vh-g46g"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["privilege_escalation","data_modify"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"TP-Link WiFi Repeater","requires_auth":"none","summary":"An attacker on the local network can bypass authentication on TP-Link repeaters by deriving credentials from captured HTTP traffic, gaining admin access.","user_interaction":"required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"TPLink","cpe":[],"cvss":{"score":5.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-287","name":"Improper Authentication"}],"description":"Multiple\nTP-Link Wi-Fi range extenders use a custom, reversible XOR-and-dictionary\ntransformation in the HTTP web-management login flow. An unauthenticated attacker\non the same local network who can capture the network traffic associated with\nlegitimate administrator login may be able to derive an alternative credential\nvalue that produces the same accepted authentication result and use it to\nauthenticate to the device’s web-management interface with administrator\nprivileges. Exploitation requires the management login to use HTTP and the\nattacker to observe the session key, dictionary, and login value associated\nwith a legitimate administrator login.\n\nSuccessful\nexploitation may allow an unauthenticated adjacent attacker to gain\nadministrator access to the affected device and modify exposed configuration\nsettings.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-10-14","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-10-14T19:55:35Z","kind":"github_poc","ref":"https://github.com/lukaspalm/CVE-2026-109506","stars":0,"title":"Technical writeup of CVE-2026-109506, a vulnerability I found in multiple TP-Link Wi-Fi Range Extenders"}],"tier":"poc_unverified"},"has_fix":null,"headline":"Improper Authentication in Multiple TP-Link WiFi Repeaters","id":"CVE-2026-109506","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"Mang Board \u003c= 2.4.4 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'content' Parameter","id":"CVE-2026-109512"},"packages":[],"prev":{"headline":"ASP.NET Core Denial of Service Vulnerability","id":"CVE-2026-109468"},"products":["RE190 v5","RE200 v5","RE205 v4","RE215 v1","RE220 v3","RE230 v2","RE300 v2","RE305 v4","RE315 v1","RE330 v1","RE335 v1","RE365 v2","RE365 v3","RE450 v4.8","RE550 v1","RE750C v4"],"published":"2026-10-14","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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-15","vendors":["TP-Link Systems Inc."]},"summary":"An attacker on the local network can bypass authentication on TP-Link repeaters by deriving credentials from captured HTTP traffic, gaining admin access.","url":"https://insights.sbomify.com/CVE-2026-109506/"}