diff --git a/modules/lua/lua_apr.c b/modules/lua/lua_apr.c index 8a1dcf6811..867a370078 100644 --- a/modules/lua/lua_apr.c +++ b/modules/lua/lua_apr.c @@ -39,7 +39,14 @@ static int lua_table_set(lua_State *L) apr_table_t *t = ap_lua_check_apr_table(L, 1); const char *key = luaL_checkstring(L, 2); const char *val = luaL_checkstring(L, 3); - + + /* Prevent response/header splitting by not allowing newlines in tables. + * At this stage, we don't have the request_rec handy, and we can't change + * a const char*, so we'll redirect to a standard error value instead. + */ + if (ap_strchr_c(val, '\n')) { + val = "[ERROR: Value contains newline, ignored.]"; + } apr_table_set(t, key, val); return 0; }