{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-31904 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-31904 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-31904 is a high-severity authentication bypass vulnerability in CTEK Chargeportal, published on 20 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-31904 and fix it if it is affected.\n\nWhat it is: CVE-2026-31904 is a high-severity authentication bypass vulnerability in CTEK Chargeportal, published on 20 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-31904 in the wild and no public exploit code.\n\nAffected product: CTEK Chargeportal. 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-2026-31904/ (Markdown: https://insights.sbomify.com/CVE-2026-31904/index.md)","id":"CVE-2026-31904","markdown":"https://insights.sbomify.com/CVE-2026-31904/index.md","name":"CVE-2026-31904","record":{"aliases":["GHSA-8gv5-gqxv-v6mq"],"analysis":{"component_type":"cloud_service","fix_type":"no_fix_stated","impacts":["account_takeover","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"EV charging portal","requires_auth":"none","summary":"Attackers can brute-force credentials or disrupt telemetry via unthrottled WebSocket authentication requests in the CTEK Chargeportal.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"icscert","cpe":[{"product":"charge_portal","vendor":"ctek"}],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-307","name":"Improper Restriction of Excessive Authentication Attempts"}],"description":"The WebSocket Application Programming Interface lacks restrictions on the number of authentication requests. This absence of rate limiting may allow an attacker to conduct denial-of-service attacks by suppressing or mis-routing legitimate charger telemetry, or conduct brute-force attacks to gain unauthorized access.","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":"CTEK Chargeportal Improper Restriction of Excessive Authentication Attempts","id":"CVE-2026-31904","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":"Apache OFBiz: Reflected XSS via Improper HTML Attribute Escaping in Layered-Modal Dialog Parameters","id":"CVE-2026-31906"},"packages":[],"prev":{"headline":"IGL-Technologies eParking.fi Improper Restriction of Excessive Authentication Attempts","id":"CVE-2026-31903"},"products":["Chargeportal"],"published":"2026-03-20","related":[{"cvss_score":9.3,"headline":"CTEK Chargeportal Missing Authentication for Critical Function","id":"CVE-2026-25192","kev_date_added":null,"published":"2026-03-20"},{"cvss_score":6.9,"headline":"CTEK Chargeportal Insufficient Session Expiration","id":"CVE-2026-27649","kev_date_added":null,"published":"2026-03-20"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-03-23","vendors":["CTEK"]},"summary":"Attackers can brute-force credentials or disrupt telemetry via unthrottled WebSocket authentication requests in the CTEK Chargeportal.","url":"https://insights.sbomify.com/CVE-2026-31904/"}