{"answers":{"affected":"2 open source packages ship an affected version, including @hotwired/turbo. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-66803 exists.","fix":"Upgrade @hotwired/turbo to 8.0.21 or later.","what":"CVE-2025-66803 is a medium-severity vulnerability in n/a, published on 20 Jan 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-2025-66803 and fix it if it is affected.\n\nWhat it is: CVE-2025-66803 is a medium-severity vulnerability in n/a, published on 20 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-66803 exists.\n\nAffected packages and fixed versions:\n- @hotwired/turbo (npm): affected all versions; fixed in 8.0.21\n- @hotwired/turbo (npm): affected all versions; fixed in 8.0.21\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-2025-66803/ (Markdown: https://insights.sbomify.com/CVE-2025-66803/index.md)","id":"CVE-2025-66803","markdown":"https://insights.sbomify.com/CVE-2025-66803/index.md","name":"CVE-2025-66803","record":{"aliases":["GHSA-qppm-g56g-fpvp"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Hotwired Turbo library","requires_auth":"none","summary":"Remote attackers can bypass logout mechanisms by exploiting a race condition in Hotwired Turbo, allowing session cookies to be reapplied after logout.","user_interaction":"not_required","vuln_class":"race_condition"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"turbo","vendor":"hotwired"}],"cvss":{"score":4.8,"severity":"medium","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-362","name":"Concurrent Execution using Shared Resource with Improper Synchronization"}],"description":"Race condition in the turbo-frame element handler in Hotwired Turbo before 8.0.x causes logout operations to fail when delayed frame responses reapply session cookies after logout. This can be exploited by remote attackers via selective network delays (e.g. delaying requests based on sequence or timing) or by physically proximate attackers when the race condition occurs naturally on shared computers.","ecosystems":["npm"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Turbo Frame responses can restore stale session cookies","id":"CVE-2025-66803","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"race_condition","year":"2025"},"n_packages":2,"n_references":3,"next":{"headline":"Cross-site scripting in n/a","id":"CVE-2025-66823"},"packages":[{"ecosystem":"npm","fixed":["8.0.21"],"introduced":["0"],"last_affected":[],"package":"@hotwired/turbo","purl":null,"source":"GHSA-qppm-g56g-fpvp"},{"ecosystem":"npm","fixed":["8.0.21"],"introduced":["0"],"last_affected":[],"package":"@hotwired/turbo","purl":"pkg:npm/%40hotwired/turbo","source":"GHSA-qppm-g56g-fpvp"}],"prev":{"headline":"File upload in n/a","id":"CVE-2025-66802"},"products":["n/a"],"published":"2026-01-20","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"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":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-01-21","vendors":["n/a"]},"summary":"Remote attackers can bypass logout mechanisms by exploiting a race condition in Hotwired Turbo, allowing session cookies to be reapplied after logout.","url":"https://insights.sbomify.com/CVE-2025-66803/"}