Bernd Kuhls be2789d084 package/libcurl: security bump to version 8.21.0 ...

https://curl.se/ch/8.21.0.html
https://daniel.haxx.se/blog/2026/06/24/curl-8-21-0/

Fixes the following CVEs:

Severity Medium
    CVE-2026-8925: SASL double-free
    CVE-2026-8927: env-set cross-proxy Digest auth state leak
    CVE-2026-9079: stale proxy password leak
    CVE-2026-11856: cross-origin Digest auth state leak

Severity Low
    CVE-2026-8286: wrong STARTTLS connection reuse
    CVE-2026-8458: wrong reuse for different services
    CVE-2026-8924: trailing dot domain super cookie
    CVE-2026-8926: password leak with netrc and user in URL
    CVE-2026-8932: incomplete mTLS config matching in conn reuse
    CVE-2026-9080: UAF after pause in socket callback
    CVE-2026-9545: exposing HTTP/3 early data
    CVE-2026-9546: sending old referer
    CVE-2026-9547: SSH improper host validation
    CVE-2026-10536: HTTP/2 stream-dependency tree UAF
    CVE-2026-11352: QUIC zero-length UDP datagrams busy-loop
    CVE-2026-11564: Native CA trust persist
    CVE-2026-11586: WS Auto-PONG memory exhaustion
    CVE-2026-12064: proto-default skips SSH verification

Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
Signed-off-by: Fiona Klute <fiona.klute@gmx.de>

2026-06-24 23:30:01 +02:00

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