{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-34456 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-34456 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-34456 is a critical authentication bypass vulnerability in reviactyl panel, published on 1 Apr 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-2026-34456 and fix it if it is affected.\n\nWhat it is: CVE-2026-34456 is a critical authentication bypass vulnerability in reviactyl panel, published on 1 Apr 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-2026-34456 in the wild and no public exploit code.\n\nAffected product: reviactyl panel. 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-2026-34456/ (Markdown: https://insights.sbomify.com/CVE-2026-34456/index.md)","id":"CVE-2026-34456","markdown":"https://insights.sbomify.com/CVE-2026-34456/index.md","name":"CVE-2026-34456","record":{"aliases":["GHSA-8mcf-rp68-xhfg"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Game server management panel","requires_auth":"none","summary":"Attackers can take over user accounts by linking social profiles with matching emails, bypassing password authentication in Reviactyl.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"reviactyl","vendor":"reviactyl"}],"cvss":{"score":9.1,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-284","name":"Improper Access Control"}],"description":"Reviactyl is an open-source game server management panel built using Laravel, React, FilamentPHP, Vite, and Go. From version 26.2.0-beta.1 to before version 26.2.0-beta.5, a vulnerability in the OAuth authentication flow allowed automatic linking of social accounts based solely on matching email addresses. An attacker could create or control a social account (e.g., Google, GitHub, Discord) using a victim’s email address and gain full access to the victim's account without knowing their password. This results in a full account takeover with no prior authentication required. This issue has been patched in version 26.2.0-beta.5.","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":"Reviactyl: OAuth account takeover via auto-linking","id":"CVE-2026-34456","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":"OAuth2 Proxy: Health Check User-Agent Matching Bypasses Authentication in auth_request Mode","id":"CVE-2026-34457"},"packages":[],"prev":{"headline":"Hi.Events: SQL Injection via Unvalidated sort_by Query Parameter in Multiple Repository Classes","id":"CVE-2026-34455"},"products":["panel"],"published":"2026-04-01","related":[],"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":"total"},"state":"PUBLISHED","updated":"2026-04-02","vendors":["reviactyl"]},"summary":"Attackers can take over user accounts by linking social profiles with matching emails, bypassing password authentication in Reviactyl.","url":"https://insights.sbomify.com/CVE-2026-34456/"}