@@ -927,6 +927,12 @@ static int open_input(HLSContext *c, struct playlist *pls)

            seg->url, seg->url_offset, pls->index);

     if (seg->key_type == KEY_NONE) {

+        const char *proto_name = avio_find_protocol_name(seg->url);

+        if (!av_strstart(proto_name, "http", NULL) && !av_strstart(proto_name, "file", NULL)) {

+            ret = AVERROR_INVALIDDATA;

+            goto cleanup;

+        }

+

         ret = ffurl_open(&pls->input, seg->url, AVIO_FLAG_READ,

                           &pls->parent->interrupt_callback, &opts);

@@ -934,6 +940,11 @@ static int open_input(HLSContext *c, struct playlist *pls)

         char iv[33], key[33], url[MAX_URL_SIZE];

         if (strcmp(seg->key, pls->key_url)) {

             URLContext *uc;

+            const char *proto_name = avio_find_protocol_name(seg->key);

+            if (!av_strstart(proto_name, "http", NULL) && !av_strstart(proto_name, "file", NULL)) {

+                ret = AVERROR_INVALIDDATA;

+                goto cleanup;

+            }

             if (ffurl_open(&uc, seg->key, AVIO_FLAG_READ,

                            &pls->parent->interrupt_callback, &opts2) == 0) {

                 if (ffurl_read_complete(uc, pls->key, sizeof(pls->key))