diff --git a/src/mux_fcgi.c b/src/mux_fcgi.c
index 02a5e2c1d..50cda6366 100644
--- a/src/mux_fcgi.c
+++ b/src/mux_fcgi.c
@@ -3136,9 +3136,18 @@ static void fcgi_strm_capture_bad_message(struct fcgi_conn *fconn, struct fcgi_s
 {
 	struct session *sess = fstrm->sess;
 	struct proxy *proxy = fconn->proxy;
-	struct proxy *other_end = sess->fe;
+	struct proxy *other_end;
 	union error_snapshot_ctx ctx;
 
+	if (fstrm->cs && fstrm->cs->data) {
+		if (sess == NULL)
+			sess = si_strm(fstrm->cs->data)->sess;
+		if (!(h1m->flags & H1_MF_RESP))
+			other_end = si_strm(fstrm->cs->data)->be;
+		else
+			other_end = sess->fe;
+	} else
+		other_end = NULL;
 	/* http-specific part now */
 	ctx.h1.state   = h1m->state;
 	ctx.h1.c_flags = fconn->flags;
diff --git a/src/mux_h1.c b/src/mux_h1.c
index 9edbaea88..b3c954e0e 100644
--- a/src/mux_h1.c
+++ b/src/mux_h1.c
@@ -1054,11 +1054,18 @@ static void h1_capture_bad_message(struct h1c *h1c, struct h1s *h1s,
 {
 	struct session *sess = h1c->conn->owner;
 	struct proxy *proxy = h1c->px;
-	struct proxy *other_end = sess->fe;
+	struct proxy *other_end;
 	union error_snapshot_ctx ctx;
 
-	if (h1s->cs->data && !(h1m->flags & H1_MF_RESP))
-		other_end = si_strm(h1s->cs->data)->be;
+	if (h1s->cs && h1s->cs->data) {
+		if (sess == NULL)
+			sess = si_strm(h1s->cs->data)->sess;
+		if (!(h1m->flags & H1_MF_RESP))
+			other_end = si_strm(h1s->cs->data)->be;
+		else
+			other_end = sess->fe;
+	} else
+		other_end = NULL;
 
 	/* http-specific part now */
 	ctx.h1.state   = h1m->state;
diff --git a/src/proxy.c b/src/proxy.c
index 8e325648f..046b1b555 100644
--- a/src/proxy.c
+++ b/src/proxy.c
@@ -1560,7 +1560,7 @@ void proxy_capture_error(struct proxy *proxy, int is_back,
 	es->when    = date; // user-visible date
 	es->srv     = objt_server(target);
 	es->oe      = other_end;
-	if (objt_conn(sess->origin) && conn_get_src(__objt_conn(sess->origin)))
+	if (sess && objt_conn(sess->origin) && conn_get_src(__objt_conn(sess->origin)))
 		es->src  = *__objt_conn(sess->origin)->src;
 	else
 		memset(&es->src, 0, sizeof(es->src));
@@ -2234,7 +2234,7 @@ static int cli_io_handler_show_errors(struct appctx *appctx)
 
 		if (appctx->ctx.errors.iid >= 0 &&
 		    appctx->ctx.errors.px->uuid != appctx->ctx.errors.iid &&
-		    es->oe->uuid != appctx->ctx.errors.iid)
+		    (!es->oe || es->oe->uuid != appctx->ctx.errors.iid))
 			goto next;
 
 		if (appctx->ctx.errors.ptr < 0) {
@@ -2264,15 +2264,15 @@ static int cli_io_handler_show_errors(struct appctx *appctx)
 					     " frontend %s (#%d): invalid request\n"
 					     "  backend %s (#%d)",
 					     appctx->ctx.errors.px->id, appctx->ctx.errors.px->uuid,
-					     (es->oe->cap & PR_CAP_BE) ? es->oe->id : "<NONE>",
-					     (es->oe->cap & PR_CAP_BE) ? es->oe->uuid : -1);
+					     (es->oe && es->oe->cap & PR_CAP_BE) ? es->oe->id : "<NONE>",
+					     (es->oe && es->oe->cap & PR_CAP_BE) ? es->oe->uuid : -1);
 				break;
 			case 1:
 				chunk_appendf(&trash,
 					     " backend %s (#%d): invalid response\n"
 					     "  frontend %s (#%d)",
 					     appctx->ctx.errors.px->id, appctx->ctx.errors.px->uuid,
-					     es->oe->id, es->oe->uuid);
+					     es->oe ? es->oe->id : "<NONE>" , es->oe ? es->oe->uuid : -1);
 				break;
 			}