Files
webmail/lib/security
Linus Rath 3ac6c25c71 fix: keep sibling subdomains from widening the sidebar-app frame-src
The inline sidebar apps hand their origins to the proxy through a
client-written cookie, which the proxy merges into `frame-src`. Any
same-site sibling host could set that cookie too. Over HTTPS the cookie
is now `__Host-bulwark_app_frame_origins`, which only this exact host
can set, and the proxy ignores the unprefixed name there. Plain HTTP
(local development) keeps the old name.
2026-09-26 16:27:03 +02:00
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