diff --git a/go.mod b/go.mod
index 7ec5889d..0fc7c17c 100644
--- a/go.mod
+++ b/go.mod
@@ -9,7 +9,7 @@ require (
 	github.com/prometheus/client_golang v1.21.1
 	github.com/sapcc/go-api-declarations v1.14.1
 	github.com/stretchr/testify v1.10.0
-	golang.org/x/net v0.37.0
+	golang.org/x/net v0.38.0
 	k8s.io/node-problem-detector v0.8.20
 )
 
diff --git a/go.sum b/go.sum
index 065d0ab2..a9784cab 100644
--- a/go.sum
+++ b/go.sum
@@ -222,8 +222,8 @@ golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLL
 golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
 golang.org/x/net v0.0.0-20201110031124-69a78807bb2b/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
-golang.org/x/net v0.37.0 h1:1zLorHbz+LYj7MQlSf1+2tPIIgibq2eL5xkrGk6f+2c=
-golang.org/x/net v0.37.0/go.mod h1:ivrbrMbzFq5J41QOQh0siUuly180yBYtLp+CKbEaFx8=
+golang.org/x/net v0.38.0 h1:vRMAPTMaeGqVhG5QyLJHqNDwecKTomGeqbnfZyKlBI8=
+golang.org/x/net v0.38.0/go.mod h1:ivrbrMbzFq5J41QOQh0siUuly180yBYtLp+CKbEaFx8=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
diff --git a/vendor/golang.org/x/net/http2/frame.go b/vendor/golang.org/x/net/http2/frame.go
index 81faec7e..97bd8b06 100644
--- a/vendor/golang.org/x/net/http2/frame.go
+++ b/vendor/golang.org/x/net/http2/frame.go
@@ -225,6 +225,11 @@ var fhBytes = sync.Pool{
 	},
 }
 
+func invalidHTTP1LookingFrameHeader() FrameHeader {
+	fh, _ := readFrameHeader(make([]byte, frameHeaderLen), strings.NewReader("HTTP/1.1 "))
+	return fh
+}
+
 // ReadFrameHeader reads 9 bytes from r and returns a FrameHeader.
 // Most users should use Framer.ReadFrame instead.
 func ReadFrameHeader(r io.Reader) (FrameHeader, error) {
@@ -503,10 +508,16 @@ func (fr *Framer) ReadFrame() (Frame, error) {
 		return nil, err
 	}
 	if fh.Length > fr.maxReadSize {
+		if fh == invalidHTTP1LookingFrameHeader() {
+			return nil, fmt.Errorf("http2: failed reading the frame payload: %w, note that the frame header looked like an HTTP/1.1 header", err)
+		}
 		return nil, ErrFrameTooLarge
 	}
 	payload := fr.getReadBuf(fh.Length)
 	if _, err := io.ReadFull(fr.r, payload); err != nil {
+		if fh == invalidHTTP1LookingFrameHeader() {
+			return nil, fmt.Errorf("http2: failed reading the frame payload: %w, note that the frame header looked like an HTTP/1.1 header", err)
+		}
 		return nil, err
 	}
 	f, err := typeFrameParser(fh.Type)(fr.frameCache, fh, fr.countError, payload)
diff --git a/vendor/golang.org/x/net/http2/server.go b/vendor/golang.org/x/net/http2/server.go
index b640deb0..51fca38f 100644
--- a/vendor/golang.org/x/net/http2/server.go
+++ b/vendor/golang.org/x/net/http2/server.go
@@ -1068,7 +1068,10 @@ func (sc *serverConn) serve(conf http2Config) {
 
 func (sc *serverConn) handlePingTimer(lastFrameReadTime time.Time) {
 	if sc.pingSent {
-		sc.vlogf("timeout waiting for PING response")
+		sc.logf("timeout waiting for PING response")
+		if f := sc.countErrorFunc; f != nil {
+			f("conn_close_lost_ping")
+		}
 		sc.conn.Close()
 		return
 	}
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 369e576e..0b76761e 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -382,7 +382,7 @@ go.opentelemetry.io/otel/metric/noop
 ## explicit; go 1.22
 go.opentelemetry.io/otel/trace
 go.opentelemetry.io/otel/trace/embedded
-# golang.org/x/net v0.37.0
+# golang.org/x/net v0.38.0
 ## explicit; go 1.23.0
 golang.org/x/net/context
 golang.org/x/net/http/httpguts