Numerous TLS handshake errors

[col-muffin]

Example from the webhook listener log:
[webhook] 2025/11/13 11:42:47 http: TLS handshake error from 127.0.0.1:58399: EOF [webhook] 2025/11/13 11:43:50 http: TLS handshake error from 127.0.0.1:58409: EOF [webhook] 2025/11/13 11:44:53 http: TLS handshake error from 127.0.0.1:58418: EOF [webhook] 2025/11/13 11:45:56 http: TLS handshake error from 127.0.0.1:58431: EOF [webhook] 2025/11/13 11:46:58 http: TLS handshake error from 127.0.0.1:58441: EOF [webhook] 2025/11/13 11:48:01 http: TLS handshake error from 127.0.0.1:58452: EOF [webhook] 2025/11/13 11:49:04 http: TLS handshake error from 127.0.0.1:58462: EOF [webhook] 2025/11/13 11:50:06 http: TLS handshake error from 127.0.0.1:58472: EOF [webhook] 2025/11/13 11:51:09 http: TLS handshake error from 127.0.0.1:58481: EOF [webhook] 2025/11/13 11:52:12 http: TLS handshake error from 127.0.0.1:58491: EOF [webhook] 2025/11/13 11:53:14 http: TLS handshake error from 127.0.0.1:56099: EOF [webhook] 2025/11/13 11:54:17 http: TLS handshake error from 127.0.0.1:63011: EOF [webhook] 2025/11/13 11:55:19 http: TLS handshake error from 127.0.0.1:63018: EOF [webhook] 2025/11/13 11:56:22 http: TLS handshake error from 127.0.0.1:61999: EOF [webhook] 2025/11/13 11:57:23 http: TLS handshake error from 127.0.0.1:62009: EOF [webhook] 2025/11/13 11:58:26 http: TLS handshake error from 127.0.0.1:62018: EOF [webhook] 2025/11/13 11:59:28 http: TLS handshake error from 127.0.0.1:62026: EOF

I've confirmed via sysmon that these are being generated from webhook.exe. Does anyone know what would be causing this and how to fix?