CVE-2026-18297: opusdec: don't use any channel positions for more than 64
channels, preventing out-of-bounds writes to the fixed-size 64-element
channel position array in gst_opus_dec_negotiate()
CVE-2026-85150: rtsp/message: use the end of the item after skipping
whitespace when parsing an auth credential value, preventing a negative
length being passed to g_strndup() in parse_auth_credentials()