DEBIAN-CVE-2026-126067: Low severity debian/rails vulnerability
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.actiondispatch.cookiessamesiteprotection, 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 samesite: to config.sessionstore. This issue is fixed in versions 8.1.4.1 and 8.0.5.2.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Action Packto a version that resolves this vulnerability.Fixed in 8.1.4.1 - Upgrade
Upgrade
Action Packto a version that resolves this vulnerability.Fixed in 8.0.5.2