{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-126067", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-11-10T17:07:43.283Z", "datePublished": "2026-11-10T20:29:44.430Z", "dateUpdated": "2026-11-10T20:29:44.430Z"}, "containers": {"cna": {"title": "Action Pack: Missing SameSite attribute on session cookies from Action Pack session stores", "problemTypes": [{"descriptions": [{"cweId": "CWE-352", "lang": "en", "description": "CWE-352: Cross-Site Request Forgery", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 3.1, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/rails/rails/security/advisories/GHSA-gmj8-hvj3-49mw", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/rails/rails/security/advisories/GHSA-gmj8-hvj3-49mw"}, {"name": "https://github.com/rails/rails/commit/2d9f502df941e31ce9bad0e846564f49396bed46", "tags": ["x_refsource_MISC"], "url": "https://github.com/rails/rails/commit/2d9f502df941e31ce9bad0e846564f49396bed46"}, {"name": "https://github.com/rails/rails/commit/f2392996be723708271a8d30bfcf0edc221e53ef", "tags": ["x_refsource_MISC"], "url": "https://github.com/rails/rails/commit/f2392996be723708271a8d30bfcf0edc221e53ef"}, {"name": "https://github.com/rails/rails/releases/tag/v8.0.5.2", "tags": ["x_refsource_MISC"], "url": "https://github.com/rails/rails/releases/tag/v8.0.5.2"}, {"name": "https://github.com/rails/rails/releases/tag/v8.1.4.1", "tags": ["x_refsource_MISC"], "url": "https://github.com/rails/rails/releases/tag/v8.1.4.1"}], "affected": [{"vendor": "rails", "product": "rails", "versions": [{"version": ">= 8.1, < 8.1.4.1", "status": "affected"}, {"version": "< 8.0.5.2", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-11-10T20:29:44.430Z"}, "descriptions": [{"lang": "en", "value": "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."}], "source": {"advisory": "GHSA-gmj8-hvj3-49mw", "discovery": "UNKNOWN"}}}}

{}

{}

{}

{}