{"answers":{"affected":"2 open source packages ship an affected version, including actionpack.","exploited":"There is no known exploitation of CVE-2026-126067 in the wild and no public exploit code.","exposure":"","fix":"Upgrade actionpack to a fixed version for your release line: 8.0.5.2 or 8.1.4.1.","what":"CVE-2026-126067 is a low-severity vulnerability in rails, published on 10 Nov 2026."},"fix_prompt":"Check this codebase for CVE-2026-126067 and fix it if it is affected.\n\nWhat it is: CVE-2026-126067 is a low-severity vulnerability in rails, published on 10 Nov 2026. \nExploitation: There is no known exploitation of CVE-2026-126067 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- actionpack (RubyGems): affected all versions; fixed in 8.0.5.2\n- actionpack (RubyGems): affected from 8.1.0.beta1; fixed in 8.1.4.1\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-2026-126067/ (Markdown: https://insights.sbomify.com/CVE-2026-126067/index.md)","id":"CVE-2026-126067","markdown":"https://insights.sbomify.com/CVE-2026-126067/index.md","name":"CVE-2026-126067","record":{"aliases":["DEBIAN-CVE-2026-126067","GHSA-gmj8-hvj3-49mw","UBUNTU-CVE-2026-126067"],"analysis":null,"analysis_generated_by":null,"assigner":"GitHub_M","cpe":[],"cvss":{"score":3.1,"severity":"low","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-352","name":"Cross-Site Request Forgery"}],"description":"Action Pack is a framework for handling and responding to web requests. Prior to 8.1.4.1 and 8.0.5.2, Action Pack session stores other than ActionDispatch::Session::CookieStore (CacheStore, MemCacheStore, and third-party stores built on AbstractStore, AbstractSecureStore or the session mixins) write the session cookie without a SameSite attribute, regardless of config.action_dispatch.cookies_same_site_protection, which defaults to :lax. Only CookieStore applies the configured policy. In browsers that do not treat a cookie without the attribute as SameSite=Lax, a cross-site request could carry the session cookie, possibly leading to cross-site request forgery against actions that do not verify an authenticity token, such as those of API-only applications. Applications are affected when they use a session store other than CookieStore and do not pass same_site: to config.session_store. This issue is fixed in versions 8.1.4.1 and 8.0.5.2.","ecosystems":["RubyGems"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Action Pack: Missing SameSite attribute on session cookies from Action Pack session stores","id":"CVE-2026-126067","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"RubyGems","product":null,"products":[],"type":null,"year":"2026"},"n_packages":2,"n_references":5,"next":{"headline":"Action Mailbox: Possible signature replay in Action Mailbox Mailgun ingress","id":"CVE-2026-126068"},"nickname":null,"packages":[{"ecosystem":"RubyGems","fixed":["8.0.5.2"],"introduced":["0"],"last_affected":[],"package":"actionpack","purl":null,"source":"GHSA-gmj8-hvj3-49mw"},{"ecosystem":"RubyGems","fixed":["8.1.4.1"],"introduced":["8.1.0.beta1"],"last_affected":[],"package":"actionpack","purl":null,"source":"GHSA-gmj8-hvj3-49mw"}],"prev":{"headline":"fast-xml-parser: Quadratic CPU consumption scanning unterminated stop-node tags","id":"CVE-2026-126066"},"products":["rails"],"published":"2026-11-10","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":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-11-10","vendors":["rails"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-126067/"}